Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Everyone...,
I'm putting together a Faint Target Observing List of potential visually-observable features/objects in the night sky. The scope to view these will be a 36"f4.5 from Overgaard, AZ so the range of magnitudes, if a magnitude is known at all, is 16 to 21 for any suggestions you may have (hopefully I'll get a few). I have 36 entries so far with a total of 100 anticipated.
I’ve got the Aintno List and the Ultimate Observing List, but I want input from you. Has anyone seen a cool feature in a photo and wondered if it's visually observable? If so, send it to me. Sometimes we see a feature in a Messier or NGC object and wonder…. Some object type categories in the list so far are: Red Giants from dwarf galaxies, a few high proper motion quasars within a 0.5 degree tfov, central stars of certain planetaries, PN’s within globulars, SN remnants, faint globulars, evaporating gaseous globules, KBO's…
Two common suggestions, Pluto's co-dwarf-planet Charon and the central star of M57, have been seen in my 20" scope, so..., must go fainter/lower contrast...
What cool things at the edge of visibility can you think of?
Suggestions (hopefully I'll get a few) should be...
1. Visible from Arizona's latitude (above the horizon).
2. Visible in some long-duration image (for confirmation of detail).
3. Coordinates are nice but not necessary, moving coordinates are fine if orbital elements are known or a finder chart is available.
Hope to hear from you...
Steven Aggas
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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deepsky
sage
Reged: 12/04/05
Posts: 228
Loc: oregon
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http://www.oregonstarparty.org/awards/2007-3revenge.pdf
http://www.oregonstarparty.org/awards/2006-3dim.pdf
here are a couple of Oregon Star Party challenge lists-"messier's revenge" and "dim and dimmer" enjoy!
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jim jackson
Astroleague Observer Award junkie
Messier Club-Honorary
Lunar Club
Binocular Messier Club
Double Star Club
Herschel 400 Club
Urban Observing Club
Deep Sky Binocular Club
Caldwell Club Silver&Gold
Southern Sky Binocular Club
Southern Sky Telescopic Club
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bicparker
Carpal Tunnel
Reged: 02/07/05
Posts: 1706
Loc: Plano, TX
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Any of the Advanced Observing Lists for Texas Star Party. Those are put together by Larry Mitchell, primarily using his 36" Obsession. We (Bob aka Crazy Bob, Mike aka The Unknown Astronomer, and myself) have had some wonderful times doing those lists through the Yard Scope (also a 36" f/5) over the years.
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Bic Parker
17.5" f/5 dob
10" f/10 SCT
5" f/8 refractor
80mm f/6 refractor
66mm f/6 refractor
Plus a few others out of the rotation
Edited by bicparker (04/21/08 03:39 PM)
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Thanks Jim, there are a few objects on those lists to add to mine, some on the Dimmer list I've seen in the 20".
Bic, do you have copies of these Advanced Observing Lists? I've searched google but object lists don't come up...
Thanks, Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Guys, I'm actually more interested in features or objects *not* on a TSP list, or any other list. I would like the bulk of this list to be never-before-attempted stuff. If this list is composed of other list material, then it's just been-there-done-that.
Any suggestions of new stuff?
Thanks,Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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ph2
super member
Reged: 11/28/05
Posts: 120
Loc: Aalborg, Denmark
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Have you seen the pulsar/neutron star inside the Crab nebula with your 36" telescope ?
From the variable star forum --> The Sounds of Pulsars
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi ph2, I've seen the pulsar in the 20". When I put the 36" on it, the nebula was a mess of filaments. The bow shock close to the pulsar (blue arc near center of the pic) may be visible and it's on The List. I have a few photos now for the next time I look....
Hubble Heritage picture of the Crab Nebula: closeup of filaments
Any more suggestions?
Thanks, Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
Edited by Olivier Biot (04/25/08 08:58 PM)
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Jeff Young
Post Laureate
Reged: 08/04/05
Posts: 4116
Loc: Ireland
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What about Hoag's object?
I assume Einstien's Cross is already on some of those lists?
I've struck out on Gyulbudaghian's with a 16", but perhaps it's more fodder for a 20" than a 36".
What about M87's jet?
-- Jeff.
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Nikon 18x70s / UA Millennium Colorado:
Solarscope SF70 / TV Pronto / AP400QMD Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-100 / AP1200GTO Tak Mewlon 250 / AP600EGTO
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
What about Hoag's object?
I assume Einstein's Cross is already on some of those lists?
I've struck out on Gyulbudaghian's with a 16", but perhaps it's more fodder for a 20" than a 36".
What about M87's jet?
-- Jeff.
Hi Jeff, thanks! Hoag’s object (#18) was suggested by my friend Johnny Bravo, Einstien's Cross is on there too (#7), M87’s jet was seen in the 20”, and although you think Gyulbudaghian's Nebula, Herbig-Haro 215, is better for smaller scopes, how about ‘seeing detail’ in/around Gyulbudaghian's Nebula?
#37 - ‘Seeing detail’ Gyulbubaghian's nebula, or the outline of the molecular cloud.
Thanks!
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Dain
Carpal Tunnel
Reged: 03/24/05
Posts: 1596
Loc: N.Y. Adirondack Mnts. NGC 4565...
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Steven ( or Mr. Wizard ), 
I took a peak at your personal web page, that 36" f4.5 is a beauty! Great job. Also, excellent work on the others! I would be really interested in looking through that baby if I ever got to Arizona!
Regards,
A CN friend-
Dain
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Best,
Dain
Adirondack Mountains (my true dark sky site)
@ Cedar River Flow
Local Site
Clear Skies?
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MessierScott
sage
Reged: 06/18/07
Posts: 294
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deepsky, I was looking at the link for the Messier's Revenge program and was wondering what the coordinates are for galaxy MAC 1641+3653, near M13? Any idea? Thanks!
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Scott Kranz
20-inch f/4.3 Starmaster w/Zambuto mirror
7-inch Starmaster
H-alpha Coronado PST
Denkmeier II binoviewers w/24mm Panoptics
16x80 binos
Astronomical Society of Kansas City
Powell Observatory with 30-inch f/4.9 EQ newtonian
Astronomical League Messier, Meteor, Sunspotter, & Asteroid Observing Programs Coordinator
ASKC Dark Sky Site
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi MessierScott (cool name), I think MAC galaxies are named using their coordinates...
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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deepsky
sage
Reged: 12/04/05
Posts: 228
Loc: oregon
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Quote:
deepsky, I was looking at the link for the Messier's Revenge program and was wondering what the coordinates are for galaxy MAC 1641+3653, near M13? Any idea? Thanks!
I don't have the 117,000 object Mitchell Anonymous Catalog loaded into my Megastar V5 software atlas, so can't tell you, but someone else might. 
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jim jackson
Astroleague Observer Award junkie
Messier Club-Honorary
Lunar Club
Binocular Messier Club
Double Star Club
Herschel 400 Club
Urban Observing Club
Deep Sky Binocular Club
Caldwell Club Silver&Gold
Southern Sky Binocular Club
Southern Sky Telescopic Club
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
Steven ( or Mr. Wizard ),
I took a peak at your personal web page, that 36" f4.5 is a beauty! Great job. Also, excellent work on the others! I would be really interested in looking through that baby if I ever got to Arizona!
Regards,
A CN friend-
Dain
Thanks Dain! My friends all came up with names for themselves John is Jonny Bravo (aka Stellar King), Ron is Camping Man, they call me Mr Wizard and my wife Lori is Smurfette. We're not always serious astronomers....
I appreciate the compliment on the scopes too. Labors of love.
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Quote:
deepsky, I was looking at the link for the Messier's Revenge program and was wondering what the coordinates are for galaxy MAC 1641+3653, near M13? Any idea? Thanks!
Steven is correct. MAC galaxies are listed by their coordinates. If two are so close together, they would have the A or B sublettering. MAC is created by Larry Mitchell of the Advanced Observing List at TSP. He is another very accomplished observer. He is the guy on the left. He uses a 36" Obsession.
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Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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Never before seen? There are plenty of those. Try Hewett 1 in Sextans, which is tied with Sh2-216 as the closest planetary nebula to earth. Hewett 1 was discoverd in 2004, is 2 degrees acorss (with evidence for a fainter outer shell 10 degrees acorss), and has never been observed visually. I attempted it with my 18" scope from West Texas in December 2006, and found not even a hint of anything. Furthermore, it's quite likely that it is simply unobservable visually, period, regardless of scope size- it may be large, but it is EXTREMELY faint. It wasn't even discovered by imaging it- it was discovered when it was noted that all the galaxies in a circular region in Sextans had a very faint OIII emission line at near zero redshift.
Other never observed (to my knowledge) targets include the planetary nebulae JaFu1 and JaFu2 in Palomar 6 and NGC 6441, respectively.
There are hundreds- thousands even- of very faint and distant Abell galaxy clusters that have no records of ever being seen visually. I have seen a couple of these in my "small" 18" scope. Some of them have such large central elliptical galaxies that they can be seen with my 18" from over 2 billion light years away- twice the distance of ACO 2065, the Corona Borealis supercluster. It's thrilling to track down such distant galaxy clusters.
Even such well-known catalogs such as the Sharpless nebulae have members that have no record of being observed visually.
There is, to my knowledge, no place that records who or when the first visual observation of a target took place. Thus, it's very hard to say who was the first person to see something visually, unless it was JUST discovered. No real way of checking to see if anyone has ever observed Sh2-135, for example, without just doing a google search of Sh2-135. Furthermore, more often than not, people will see something and not post anything on the web. I've actually observed Sh2-135, but I never posted an observing report of it, so someone who just has seen it and does a search for information about it could conclude that they may be the first person ever to see it. That said, now that I mentioned it in this thread, there's a good chance that this will generate search engine hits for this object being observed...
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
Edited by tatarjj (04/22/08 01:28 PM)
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Thanks John,
Hewett 1, JaFu1, and JaFu2 are on the list (38, 39, and 40)!
I purposefully refrained from putting AGC's on the list. I've seen many but wanted a good variety of objects. My request is not to say "I'm the first to see it", though there may be things that I am, but by asking others what's cool/tough I get things I may not have thought of/known of.
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Never
super member
Reged: 11/22/05
Posts: 109
Loc: Finland
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Quote:
No real way of checking to see if anyone has ever observed Sh2-135, for example, without just doing a google search of Sh2-135. Furthermore, more often than not, people will see something and not post anything on the web. I've actually observed Sh2-135, but I never posted an observing report of it, so someone who just has seen it and does a search for information about it could conclude that they may be the first person ever to see it. That said, now that I mentioned it in this thread, there's a good chance that this will generate search engine hits for this object being observed...
Jere's MAC has the minimum aperture as UHC + 14".
/Jake
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Jaakko Saloranta - Some basic sketches.../
8" Orion DSE
4" Sky-Watcher
3" Konus RFT
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deepsky
sage
Reged: 12/04/05
Posts: 228
Loc: oregon
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By the way Steven..
What a great write-up in the June S&T "Taming a Monster Scope". Congrats! 
Wow! Now I understand why you are looking for challenges. What an ideal large aperture set-up you have.
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jim jackson
Astroleague Observer Award junkie
Messier Club-Honorary
Lunar Club
Binocular Messier Club
Double Star Club
Herschel 400 Club
Urban Observing Club
Deep Sky Binocular Club
Caldwell Club Silver&Gold
Southern Sky Binocular Club
Southern Sky Telescopic Club
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
By the way Steven..
What a great write-up in the June S&T "Taming a Monster Scope". Congrats!
Wow! Now I understand why you are looking for challenges. What an ideal large aperture set-up you have.
Thank you Jim... I love building 'em, love using 'em, and wow I made it into S&T. It just keeps getting better...
I've gotten some really good suggestions for the list from folks at CN. It'll be a fun list to tackle. Do you have any for the list?
Thanks again,
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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nytecam
Postmaster
Reged: 08/20/05
Posts: 5751
Loc: London UK
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Kool objectives Mr Wizard  your 36" is x170 the 'collecting' power of my 70mm OG and wonder what I'd 'see' tonight from Smoky London Town starting in Leo with the 40 or so galaxies in AGC 1367 
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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+e-finder+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9+Lodestar CCDs/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-my videos
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Thank you nytecam...
Any suggestions for the list?
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Ok, nine distance class 7, mag > 18.0, Abell Galaxy Clusters are on the list....
ACO 1560 D:7,R:2 Cluster in Coma Bernices, 18.1
ACO 1995 D:7,R:1 Cluster in Draco, 18.4
ACO 2232 D:7,R:1 Cluster in Draco, 18.1
ACO 908 D:7,R:1 Cluster in Leo, 18.4
ACO 700 D:7,R:0 Cluster in Linx, 18.3
ACO 530 D:7,R:2 Cluster in Orion, 18.2
ACO 825 D:7,R:1 Cluster in Ursa Major, 18.2
ACO 851 D:7,R:1 Cluster in Ursa Major, 18.4
ACO 1745 D:7,R:2Cluster in Ursa Major, 18.4
Anybody else have suggestions of cool things?
Thanks, Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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deepsky
sage
Reged: 12/04/05
Posts: 228
Loc: oregon
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Steven
This has probably occurred to you, but you might want to go back and look at some celestial eye candy through the 36"- for instance, do you see color in the Orion Nebula? 
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jim jackson
Astroleague Observer Award junkie
Messier Club-Honorary
Lunar Club
Binocular Messier Club
Double Star Club
Herschel 400 Club
Urban Observing Club
Deep Sky Binocular Club
Caldwell Club Silver&Gold
Southern Sky Binocular Club
Southern Sky Telescopic Club
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Jim, yep, I've actually seen color in M42 in the 20", in the 36" it was just awesome... But you're right the eyecandy is good in terms of it being a two-fer, candy plus some dificult feature. Like M76, it should be called the Apple Neb, not Apple Core Neb. To finish off the list I may end up browsing googled ccd images of objects for faint/unique features. But I wanted to get input from others on what they think is cool or difficult.
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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bicparker
Carpal Tunnel
Reged: 02/07/05
Posts: 1706
Loc: Plano, TX
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Steven,
It is funny you mentioned M76... we were observing that through the 82" Struve telescope in early December.
We came to the conclusion that M76 was simply "In the Way!". I ended up sketching 14 galaxies around the M76 that are otherwise uncharted. It would be interesting if you can see some of these through your 36".
It was a great lesson on how wide the dynamic range of the eye is compared to our imaging capabilities.
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Bic Parker
17.5" f/5 dob
10" f/10 SCT
5" f/8 refractor
80mm f/6 refractor
66mm f/6 refractor
Plus a few others out of the rotation
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Bic, viewing through an 82", very cool.... If you send me a copy of your sketch I'll see what's visible?
Thanks, Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Starman1
Vendor - Scope City
Reged: 06/24/03
Posts: 12223
Loc: Los Angeles
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Well,
--the entire list of M31 globulars
--every planetary in the Abell planetary catalog
--all the features in the Arp galaxy catalog (bridges, etc.)
--a count of the number of stars visible in NGC206. Astrometric magnitude info exists for the brightest 100-200 stars in that star cloud, so you could determine the actual limit of your scope.
--if you live long enough, the Mitchell Anonymous Catalog of galaxies.
The above should keep you busy for a few years.
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Don Pensack
12.5" Truss Dob, 5" Maksutov, Fujinon Binos
Sustaining Lifetime IDA member
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
Well,
--the entire list....
--every....
--all....
The above should keep you busy for a few years.
Hmmmm, I think that would exceed the anticipated total of 100 tough objects, with replacements as sucessful observations are made. There may be a few Arp bridges that are tough, a couple Abell planetaries extremely faint and galaxies beyond the MAC list that are targets for a 36".
Any specific ones within those lists come to mind?
Thanks, Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Starman1
Vendor - Scope City
Reged: 06/24/03
Posts: 12223
Loc: Los Angeles
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Yeah,
Planetaries:
Abell 1,9,18,45,58,and73
Galaxy Clusters:
AGC4071
Peculiar galaxies:
Arp139 (jet) MCG +5-31-135
Arp146 (ring) PGC 509/510
Arp151 (jet) MCG +9-19-73
These were not seen in a 28", though Abell73 was suspected.
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Don Pensack
12.5" Truss Dob, 5" Maksutov, Fujinon Binos
Sustaining Lifetime IDA member
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Quote:
Yeah,
Planetaries:
Abell 1,9,18,45,58,and73
Galaxy Clusters:
AGC4071
Peculiar galaxies:
Arp139 (jet) MCG +5-31-135
Arp146 (ring) PGC 509/510
Arp151 (jet) MCG +9-19-73
These were not seen in a 28", though Abell73 was suspected.
I picked off all of the above Abell PNe's except Abell 9. The rest were pretty tough.
Arp 151's jet was barely visible in my 22", but under pretty good skies...not as nice as Steven's though. It was tough.
Arp 146 ring is still a quest for me. Arp 147 ring was visible. Arp 148 ring - forget it.
Steve, another nice target is the line of Arp 338. I was shocked that I saw it. Another fellow observer saw it as well...so I'm sure that I wasn't seeing things. lol
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Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Hrundi
Pooh-Bah
Reged: 02/06/08
Posts: 1237
Loc: Estonia
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Try going through all the milky way globulars. I read about someone trying that, and supposedly it became quite a challenge with a few of the fainter ones.
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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Yea, you could go for the Terzans and the Palomar globular clusters, but I have a feeling you've seen them already, and/or already have them on the list. Heck, I've seen 8/11 Terzans and 12 or 13 of 15 Palomars, and that's just with my 18", so you should be able to see all Terzans and Palomars with your 36”.
I thought you weren't including Abell clusters?! I've got an ongoing project of viewing all 2700+ original Abell clusters (and plan to move on to eventually ALL Abell clusters north of -35 deg) using the Aladin previewer from the SIMBAD Astronomical Database. Upon viewing the POSS image, I take very short notes on each cluster, if it meets the requirement of at least 1 member possibly being observable through a 25” scope. Because faint galaxies are generally similar in surface brightness and appearance at the eyepiece, once you’ve got the hang of it and got some experience, you can usually judge whether an galaxy has a chance of being observable through, say, a 25” scope or not. I’ll also make a note sometimes if I find a galaxy cluster that is probably not observable but is very interesting, or a galaxy cluster that may not have any individual members observable, but may be so dense the central galaxy clumps may be visible as combined objects.
In the end though, I am basically assessing whether it is a good cluster to observe. I personally like density, a high galaxy count, and distance. I’d say about 70%-80% of all ACOs have at least one member that can be observed through a 25” scope.
Anyway, I can send you my (incomplete) list if you want. While I’ve probably put about 40-60 hrs of work in on it, it’s still only about half done- there are A LOT of galaxy clusters. With the list, you may be able to identify a few ACOs to go after that are not on ANY current observing lists.
Here’s a sample of what it looks like:
(z is redshift, expressed in fraction of speed of light; z = 0.07 is roughly equal to 1 BLY)
Note that the CN forums did not preserve the format that I had this list in; the real document is more readable.
ACO 1088 Bright central E, 3-4 others obsrvbl and spread out
ACO 1089 Poor image, central gal may be visible
ACO 1090 Somewhat dense, 3-4 gals obsrvbl
ACO 1092 z = 0.1056 Loose, 3-4 gals obsrvbl
ACO 1097 Nice, tight grouping of 3 bright gals, many other faint
ACO 1098 z = 0.0716 Nice! Tight grouping of a dozen gals around a couple stars
ACO 1100 z = 0.0455 Decent, bright but close. Not dense, but around a dozen gal
ACO 1101 z = 0.1614 Very dense core may be visible in big scope
ACO 1102 Many very faint spread out gals with no apparent core
ACO 1103 2 very faint gals may be visible, mod. density
ACO 1104 Irreg. gal at center only obsrvbl gal, very low pop. cluster
ACO 1105 3-4 gals obsrvbl, many faint, moderate density
ACO 1107 Not bad, 6-8 moderately packed gals in semi-rich starfield
--------------------
John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
Edited by tatarjj (04/28/08 10:57 AM)
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
Quote:
Yeah,
Planetaries:
Abell 1,9,18,45,58,and73
Galaxy Clusters:
AGC4071
Peculiar galaxies:
Arp139 (jet) MCG +5-31-135
Arp146 (ring) PGC 509/510
Arp151 (jet) MCG +9-19-73
These were not seen in a 28", though Abell73 was suspected.
I picked off all of the above Abell PNe's except Abell 9. The rest were pretty tough.
Arp 151's jet was barely visible in my 22", but under pretty good skies...not as nice as Steven's though. It was tough.
Arp 146 ring is still a quest for me. Arp 147 ring was visible. Arp 148 ring - forget it.
Steve, another nice target is the line of Arp 338. I was shocked that I saw it. Another fellow observer saw it as well...so I'm sure that I wasn't seeing things. lol
Thanks Don for the list and Alvin for the update. Those should be good targets to try for. They don't have to be 'never been seen', just 'gave me heartburn' type objects... 
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
Try going through all the milky way globulars. I read about someone trying that, and supposedly it became quite a challenge with a few of the fainter ones.
Globs on the list are:
AM 1 globular
UKS 1
JaFu 1 (near globular cluster Palomar 6)
Jafu 2 (located in globular cluster NGC 6441)
Are there any tougher than these?
Thanks, Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
.... I thought you weren't including Abell clusters?!....Anyway, I can send you my (incomplete) list if you want. While I’ve probably put about 40-60 hrs of work in on it, it’s still only about half done- there are A LOT of galaxy clusters. With the list, you may be able to identify a few ACOs to go after that are not on ANY current observing lists.....
John, that would be great, I'd appreciate you sending me that. I had said no to agc's, but that's because there are thousands of them, however, Class 7's may fit the criterion of this list.
Again, please send me your list.
Thanks, Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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Quote:
Quote:
Try going through all the milky way globulars. I read about someone trying that, and supposedly it became quite a challenge with a few of the fainter ones.
Globs on the list are:
AM 1 globular
UKS 1
JaFu 1 (near globular cluster Palomar 6)
Jafu 2 (located in globular cluster NGC 6441)
Are there any tougher than these?
Thanks, Steven
You mean that the planetary nebula GJJC 1 in M22 isn't on your list?
As far as faint globulars go, I think UKS 1 is SUPPOSED to be about as tough as they get. I haven't tried UKS 1 yet, and probably won't, until I get my 25". There may be a Terzan or two that are around that toughness. Except for two of them (Terzan 7 and 8, I think), the eight Terzans I saw with my 18" were very tough. Perhaps the three I DIDN'T see would make decent targets with a 36". I can't remember which they were, right off the bat.
By the way, what does "class 7" mean in regards to Abell galaxy clusters?
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi John, GJJC 1 is on there as object 29. It also goes by PK 009-07.1 and IRAS 18333-2357 when I searched GJJC 1.
The class 7 I'm referring to is Distance Class that was used by Abell, Corwin, Olowin.
Distance: Separated according to the magnitudes of their tenth brightest members
Distance Class 1: mag 13.3-14.0
Distance Class 2: mag 14.1-14.8
Distance Class 3: mag 14.9-15.6
Distance Class 4: mag 15.7-16.4
Distance Class 5: mag 16.5-17.2
Distance Class 6: mag 17.3-18.0
Distance Class 7: mag > 18.0
There is also a richness class:
Richness: A cluster must have a minimum population of 50 members within a magnitude range of m3 to m3+2 (where m3 is the magnitude of the third brightest member of the cluster).
Richness Class 0: 30-49 galaxies
Richness Class 1: 50-79 galaxies
Richness Class 2: 80-129 galaxies
Richness Class 3: 130-199 galaxies
Richness Class 4: 200-299 galaxies
Richness Class 5: more than 299 galaxies
It gives some indication of difficulty.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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Well, from what I can tell, one of the best clusters I've "found", ACO 27, was rated rather poorly by those scales according to Steve Gottileb (and hence why he had never seen it), so I wouldn't put much trust in them.
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
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sgottlieb
sage
Reged: 07/22/07
Posts: 339
Loc: SF Bay area
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No one has mentioned the Shakhbazian catalogue yet (compact groups of compact galaxies), for potential targets. If you want just want one suggestion, Shakhbazian 1 should be a good target.
If the Shakhbazians interest you, check out Andreas Domenico's site http://www.andreas-domenico.de/astro/shkh.html for sketches and descriptions of the "brighter" clusters. There's even mention of Tom Clark's sighting of Shakh 1 in a 36". Several of Shakhbazians are very nice (challenge) targets for an 18" by the way, including Shkh 16, 166, 202, 317
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi John, that may be correct. Esthetically ACO 27, D:5, R:0, is interesting, with several brighter galaxies, possible cD galaxies, and a broad range of galaxy brightness overall in its compact core region fading out to 20-30 arc minutes. Distance Class 5: mag 16.5-17.2 does not indicate the non-uniformity in their brightness of the core group, which for visual observers is appealing, but possibly the R:0 does, since a zero here indicates few, 30 to 49 galaxies, between the magnitude of the third brightest to two mags fainter. Abell’s code may have been great for density maps of the Universe, but not the best code for visual observers.
We should make our own code… 
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Very cool Steve, thank you...
If you have other catalog suggestions of tough/obscure objects, I'd like to hear about them.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Starman1
Vendor - Scope City
Reged: 06/24/03
Posts: 12223
Loc: Los Angeles
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While not on the same level as the Aintno objects, this:
http://pw2.netcom.com/~ahighe/a2199temp.htm
might be fun for a big scope.
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Don Pensack
12.5" Truss Dob, 5" Maksutov, Fujinon Binos
Sustaining Lifetime IDA member
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Don, thanks. You're right, it is fun. I've tracked that one down in the 8" and 20", but not the 36" yet.... Some of the brighter Abells are eye-candy too...
Thanks, Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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palsing
super member
Reged: 08/11/05
Posts: 137
Loc: Poway, CA
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Quote:
Try going through all the milky way globulars. I read about someone trying that, and supposedly it became quite a challenge with a few of the fainter ones.
Globs on the list are:
AM 1 globular
UKS 1
JaFu 1 (near globular cluster Palomar 6)
Jafu 2 (located in globular cluster NGC 6441)
Are there any tougher than these?
Well, how about these?
2MASS Globular GC01
2MASS Globular GC02
Liller 1
See Amastro message #2656 for Barbara Wilson's notes on these guys... when she says they are tough, they are tough.
--------------------
Paul
25" Obsession
5.5" Newt - finder (Cometcatcher)
Hutech 22 X 100 binos w/LPS-P2 filters
Canon 10 X 30 IS binos
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Oh, add Abell 28 to the list.
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Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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MessierScott
sage
Reged: 06/18/07
Posts: 294
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These should definitely be a bit more impressive in a bigger scope.
Through the 20-inch:
Liller 1: At times of better seeing, this globular was actually visible with direct vision, otherwise it could be held steady 100% of the time with averted vision and definitely verified by another observer. A small grainy patch with no brighter core seen.
UKS 1: Extremely faint! Seen only with averted vision, high power, and a bit of a “scope shake”. A faint star lies right next to it on the W side. No brighter central area seen, just a faint glowing ball in the background. Equally bright stars lies the same distance to the NE and the SW of the globular.
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Scott Kranz
20-inch f/4.3 Starmaster w/Zambuto mirror
7-inch Starmaster
H-alpha Coronado PST
Denkmeier II binoviewers w/24mm Panoptics
16x80 binos
Astronomical Society of Kansas City
Powell Observatory with 30-inch f/4.9 EQ newtonian
Astronomical League Messier, Meteor, Sunspotter, & Asteroid Observing Programs Coordinator
ASKC Dark Sky Site
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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UKS was already on the list as object #4. The others are good additions too...
4 UKS 1
61 2MASS-GC01
62 2MASS-GC02
63 Abell 28
64 Liller 1
I appreciate it.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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To clarify on Abell 28.
I observed it once with my 22-inch under excellent skies, with another experienced observer confirming it.
Later at TSP, I had to work hard and only at my second look, I suspected it as a brightening only on one edge, a different observation than with my 22". And that was with Larry's 36" f/5 Obsession! So I'd love to hear your observation, whether successful or not.
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Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Oh, Steve, when you are done with your List, do you mind sharing with us?
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Sure Alvin, I'll share it. Many of you helped put it together and I'll try to get the first suggesters name listed after each one. I'm glad you all have thought this was as fun as I hoped it would be. This list is shaping up to be a tough list but nothing absurd.
When done I'll put it up on my site and post a link here.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Thanks Steven, I'll look at my stuff when I get home and come up with a couple other challenging features of various Arps.
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Hrundi
Pooh-Bah
Reged: 02/06/08
Posts: 1237
Loc: Estonia
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How about trying to hunt down objects in/near M31?
http://adsabs.harvard.edu/cgi-bin/bib_query?1987A&AS...67..447B
That paper has a huge list of objects, including a multitude of globulars.
http://adsabs.harvard.edu/cgi-bin/bib_query?1993A&A...272...77B
I think quite a few of them are catalogued here:
http://simbad.u-strasbg.fr/simbad/sim-id?Ident=hbk&NbIdent=cat&Radius=2&Radius.unit=arcmin&submit=submit+id
I haven't tried them though, so I don't know what the fun factor for this is.
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Edited by Hrundi (04/29/08 03:42 PM)
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kcolter
member
Reged: 06/04/03
Posts: 87
Loc: Missouri, USA
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Steven
I've been meaning to have a go at the Guitar Nebula in Cepheus when it is well placed. My observing friend, Bob Kirschenmann, had a look at it through Barbara Wilson's 20 inch at Okie-Tex last fall. It sounds like it was a challenge in the high dark desert skies of Kenton, Oklahoma so I am sure it will be tough from Missouri.
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palsing
super member
Reged: 08/11/05
Posts: 137
Loc: Poway, CA
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Quote:
...what the coordinates are for galaxy MAC 1641+3653, near M13? Any idea? Thanks!
16:41:23.7 +36:53:55 mag 16.0
Megastar tells me there are dozens of MACs around M 13, but this one is the brightest. It is about the same distance from the center of M 13 as is NGC 6207, but is about 21 arc-seconds west...
I think you might consider letting us peek at the uncompleted list, so far, because although I could probably come up with a lot of objects that most people haven't heard of, much less observed, I don't want to spend too much time culling them from my personal library, only to be told that they are already on your list.
Whaddaya think?
--------------------
Paul
25" Obsession
5.5" Newt - finder (Cometcatcher)
Hutech 22 X 100 binos w/LPS-P2 filters
Canon 10 X 30 IS binos
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palsing
super member
Reged: 08/11/05
Posts: 137
Loc: Poway, CA
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Quote:
Quote:
...what the coordinates are for galaxy MAC 1641+3653, near M13? Any idea? Thanks!
16:41:23.7 +36:53:55 mag 16.0
Megastar tells me there are dozens of MACs around M 13, but this one is the brightest. It is about the same distance from the center of M 13 as is NGC 6207, but is about 21 arc-seconds west...
Make that 21 arc-minutes west...
--------------------
Paul
25" Obsession
5.5" Newt - finder (Cometcatcher)
Hutech 22 X 100 binos w/LPS-P2 filters
Canon 10 X 30 IS binos
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Jimi
journeyman
Reged: 04/29/08
Posts: 7
Loc: Fort Davis Texas
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Hi what about Wn1 ring gx in sextans! also shkbazian76 the alabama gx cluster, I have my own list of things to try with my 48" dob Ill show you mine if you show me yours
Jimi
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Jimi
25 F5 obsession
48 F4 T.E.C.,O.M.I
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Ok, the partial list can be found at:
http://darkskyobserving.com/
at the bottom of the page with a name chosen by Nytecam, a CN member.
"The Wizard's Challenge...."
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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palsing
super member
Reged: 08/11/05
Posts: 137
Loc: Poway, CA
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Quote:
Ok, the partial list can be found at:
http://darkskyobserving.com/
"The Wizard's Challenge...."
OK, here is a list of objects for you to consider. Many are very faint, many may not be observable at all, and many are not hard but very obscure, at least I think they are obscure.
I have not observed most of these, and I don't think that too many people have, either. I do a lot of armchair research ;>).
The list;
ANTLIA DWARF - PGC 29194
R AQUARII NEBULA
23 43 49.6 -15 17 04
Nebula around this star is tough
HuLo-1 in NGC 6751
This might be an outer part of 6751 but it might be a separate PN
AQUILA - PARSAMYAN 21
19 29 00.8 +09 38 45
Cometary nebula, obscure object
CETUS –Shakhbazian 317
WLM and its Globular Cluster
COMA BERENICES - Longmore-Tritton 5
large and dim donut-shaped PN
CORONA AUSTRALIS – LONGMORE 17
CYGNUS – DWB 111 = PROPELLER NEBULA
20 16 17 43 43 00
DRACO – ARP 188 – THE TADPOLE - Can you see the tail?
DRACO – SHAKHBAZIAN 16
HERCULES – K 1-14 - Can you see the outer halo?
HERCULES – NGC 6028 – A HOAG-TYPE OBJECT w/ outer blue ring
LEO - EGB6 = PK 221+46.1 = PN G 221.5+46.3 - Huge ancient PN, very faint
LYNX - APM 08279+5255
08 31 42 +52 45 17
The brightest continuously emitting object yet known, a Quasar
LYNX - PuWe 1
06h 19m 38s, +55d 37m 48s
So far, only part of the arc of this PN's giant 1200 arc-second disk has been seen, as far as I know
MONOCEROS – SRWW 1
RA 07 15 41 DEC -01 52 42
Possibly never observed
Vdb-Ha 176 (BH 176) Globular Cluster (NORMA)
RA 15:39:07 DEC -50:03:02
As far as I know, only Andrew Murrell and Barbara Wilson have reported seeing this guy (2 of my favorite people). Seen from Texas, so maybe also from Arizona...
OPHIUCHUS – HP 1
17 31 05.3 -29 58 59
...just brighter than the background glow...
OPHIUCHUS – DHW 1-2
RA 17 06 55 DEC -09 47 04
only Kent Wallace has seen this guy, as far as I know...
OPHIUCHUS – HENIZE 3-1475
17 42.32 -17 55.6
Maybe never observed...
OPHIUCHUS - PN G 010.1+07.4
17 41 04.6 -16 24 47
Another PN with maybe only 1 observation, Kent Wallace (again)
OPHIUCHUS - PNG 27.6+16.9
17 41 41 +03 07 02
A mag 16.3 PN, maybe observed once, by Eric Honeycutt
WeDe1 = PK 197-6.1 = PN G 197.4-06.4
5 59 24.7 +10 41 41
ORION - 925 arc-second halo PN, mag 17.4, good luck...
ORION - Herbig-Haro 222 "The Waterfall"
Near HH-1 and HH-2, which are much easier...
HH-130 is also a toughie in the area...
PERSEUS, Sharpless 2-216, 4h 45m 35s, +46 48m 45s
The closest and largest PN in the sky, about 1.6 degress across, probably way too big for your telescope...
PISCES – PK 125-47.1 (PHL 932)
00 59 57 +15 44 14
very faint, practically unknown...
PISCES - Shakhbazian 40 (Shkh 40)
Same as the core of AGC 193. Sixty faint galaxies are concentrated in a 15 × 15 arcminutes field.
PUPPIS – CALABASH NEBULA in M46
07 42.3 -14 43
The "other" PN in M46, very faint...
PYXIS – ESO 371-2
08 39 31.93 -35 00 23.9
Could be a reflection nebula, galaxy, or PN, not studied yet, maybe not observed...
SAGITTARIUS – AL 3
18 14 06.6 -28 38 06
Discovered by Andrews and Lindsay (1967), cataloged by Van den Bergh and Hagen (1975), identified as globular cluster by Ortolani, Bica and Barbuy (2005). Not necessarily a challenge object, but definitely obscure...
SAGITTARIUS – GOMEZ’ HAMBURGER
18 09 13.3 -32 10 47
Not impossible to observe, the real challenge is to see structure.
SAGITTARIUS – HUBBLE 5
17 47 56 -29 59 42
Hubble's double-bubble PN
SAGITTARIUS – NGC 6822 BARNARD’S GALAXY
Maybe a dozen catalogued objects in this big, faint galaxy...
SAGITTARIUS - PN G 012.1-11.2
18 55 04.9 -23 28 12
Another MASH PN, probably observed by a select few...
TAURUS – Purgathofer 1 (Pu 1)
PN, very faint, certainly obscure
VIRGO – WILD’S TRIPLET - Arp 248
11 46 45 -3 50 54
Can you see the bridge between the brightest 2 galaxies?
VULPECULA – GM 3-10
19 45 18 +27 50 18
This faint emission nebula is embedded in the dark nebula Lynds 810
--------------------
Paul
25" Obsession
5.5" Newt - finder (Cometcatcher)
Hutech 22 X 100 binos w/LPS-P2 filters
Canon 10 X 30 IS binos
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Very cool list Paul! The only one discounted out of the gate is NGC 6822 BARNARD’S GALAXY since it was seen in the 20". I'll pull quite a few from it, eliminating some since it seems at first glance to be heavily loaded towards planetary nebulae.
Very much appreciated!!!
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Hrundi
Pooh-Bah
Reged: 02/06/08
Posts: 1237
Loc: Estonia
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I just remembered two galaxies that have always interested me. Dwingeloo 1 and 2. I don't know how visible they are though. Dwingeloo 2 probably isn't at all.
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palsing
super member
Reged: 08/11/05
Posts: 137
Loc: Poway, CA
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Quote:
Very cool list Paul! The only one discounted out of the gate is NGC 6822 BARNARD’S GALAXY since it was seen in the 20".
Well, what I really meant was that there are lots and lots of individual object within NGC 6822 that would be challenging targets for your Big Gun. Check this out;
http://www.noao.edu/outreach/press/pr02/images/n6822_big.jpg
and this;
http://www.ctio.noao.edu/REU/ctioreu_2001/shay/pagelgs.html
You could spend a lot of time inside this guy and still not see everything...
--------------------
Paul
25" Obsession
5.5" Newt - finder (Cometcatcher)
Hutech 22 X 100 binos w/LPS-P2 filters
Canon 10 X 30 IS binos
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Wow, you're right....
I've just got to look at everything all over again....
Thanks.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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nytecam
Postmaster
Reged: 08/20/05
Posts: 5751
Loc: London UK
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Steven - you might like to include AGC 2073 on your 'deep' list. I targetted AGC 2079 recently but included 2073 ~30' Sp in the wide fov and got a few brighter galaxies as marked on this DSS extract centred on 2073 but there's plenty of much fainter stuff there for your 36-inch especially in the southern half. This cluster has int mag 16.9 eg ~1.5 mag fainter that the 'classic' AGC 2065 a further 60' Sp 
--------------------
Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+e-finder+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9+Lodestar CCDs/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-my videos
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Thanks nytecam! Your image contains some pretty faint galaxies when compared to the DSS photo. Since it has a good mix of brighter Gx's and some really really faint stuff, and comes highly recommended, I'll add it to the list.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
|
tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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In preparation for my observing trip to Texas at the beginning of June (and the first light of my 25" scope from dark skies), I've been making finder charts like crazy. One of the targets I've made a finder chart for is the planetary nebula GJJC 1 in M22, which we mentioned earlier. These finder charts far exceed anything I have found anywhere else on the internet. I figured anyone wanting to give it a try would need very nice charts, and these really help.
The first image, shown below, is from the POSS, and is ~23'X23' across. I use SIMBAD to access POSS data, http://simbad.u-strasbg.fr/simbad/ . Unfortunately, you have to reduce the size of these images so much just so that they fit under the 100kb limit that these images are a bit too small.
--------------------
John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
Edited by tatarjj (05/15/08 07:53 PM)
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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In this second image, courtesy of http://www.astr.ua.edu/gifimages/m22.gif, shows the view zoomed in a little more, with a fainter, smaller triangle asterism of stars marked in addition to the brighter, larger triangle marked in the first image. In addition, the actual location of the planetary can be picked out.
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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This last image is a Hubble image I processed with ImageJ. I got the data from the ESO's Hubble archive site, http://archive.eso.org/wdb/wdb/hst/science/form . The smaller triangle of asterism of stars marked in the previous image is marked in this one for reference. If anyone wants the full sized images rather than these heavily reduced jpegs, send me a PM.
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
Edited by tatarjj (05/15/08 07:51 PM)
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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John,
Are you going to TSP this year? If so, sorry that I won't be there this year. I'll be there in 09 and beyond. Thisyear will be a break from TSP. I got some Adin skies (GSSP), which is nearly equivalent to TSP (black in the Light Pollution Map, not grey) and a heck of a lot closer (4.5 hours versus 22 hours).
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Thanks John, I appreciate the charts!
Congrats on your 25" mirror arrival date moving up from June to this month, woo hoo!!!
Let us know how the scope comes together for you.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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No, I'm not going to the TSP, except for perhaps a brief visit or two. I going to a cabin up in the mountains 10 miles west of Fort Davis, about 6 miles S-SW of McDonald observatory. I'll be further out from Fort Davis, and at a higher elevation, than the TSP.
--------------------
John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
Edited by tatarjj (05/14/08 12:12 PM)
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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I think out that way, it doesn't make any difference in sky quality. I think you will be in the same area as Van Robinson and Jimi Lowery. They both live out in the village. between Prude Ranch and McDonald Observatory.
Nevertheless, youu'll have excellent skies, assuming the weather coorperates.
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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No, the point isn't really about sky quality, though that is a slight factor. What it's really about is having a 25" scope set up just out the door of a fully-equiped, electrified cabin with a microwave, AC, refrigerator, bed, etc. Get hungry at midnight? Reheat some leftovers from dinner in the microwave. Much better than staying at the TSP and getting roasted out of your tent you're trying to sleep in as soon as the sun comes up.
--------------------
John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Ah...creature comforts. lol
The times I went to TSP, I got the bunkhouse. So I'm good. I go tent camping a lot, so I guess I'm used to that.
The only thing I miss at TSP is my soccer games and my family. The times I went to SSP, I actually went to Redding (a town 40 miles west) and played some pick-up soccer. lol
Anyways, this is getting off-topic.
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
Edited by Alvin Huey (05/14/08 02:25 PM)
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nytecam
Postmaster
Reged: 08/20/05
Posts: 5751
Loc: London UK
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Steven - here's another Abell GC 1213 taken May 1 with >40 galaxies in the ETX-70 frame in mag 14.4-17.0 range but many more fainter for your perusal via the Palomar DSS
And here's AGC 2079 + 2073 in CrB from May 1 marking galaxies recorded. Many more faint chains of galaxies on the Palomar DSS 
My earlier AGC 2079 posted here was the DSS shot marked with galaxies recorded via my Meade ETX-70
--------------------
Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+e-finder+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9+Lodestar CCDs/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-my videos
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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Steve,
I've been wondering if the red square nebula would work web page It's near infrared so it may be tough. Here's the Coords: RA/Dec = 18:21:15.9 -13:01:27 (J2000) V=14mag
Regards,
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Steven,
I went through my Arp book and find these as good challenges for you and other folks with huge scopes, like Jimi Lowery’s 48” from Ft. Davis.
Arp 112 – repelled arm from NGC 7806. Starts off the east edge and pointing north.
Arp 110 – east pointing repelled arm from north edge of MCG-3-58-11. Companion just off the east edge.
Arp 35 – both arms of UGC 212
Arp 201 – north ejected material off UGC 224
Arp 100 – NE filament flying off IC 18
Arp 146 – ring structure (you may have this already)
Arp 190 – NNW filament off UGC 2320
Arp 52 – companion on NW edge of CGCG 421-27
Arp 207 – disconnected ejected material from UGC 5050. It is to the SW.
Arp 97 – connecting arm from MCG+5-29-11 to MCG+5-29-10
Arp 103 – north extension of NGC 3561A
Arp 197 – NW extension and knot at the end of the extension in IC 701
Arp 161 – SW extension off UGC 6665
Arp 248 – connecting arm from MCG-1-30-33 to MCG-1-30-32
Arp 252 – connecting arm from MCG-3-25-19A to MCG-3-25-19B
Arp 106 – extension to the south from NGC 4211
Arp 149 – 4 knots of IC 803. Southwest jet off MAC 1239+1635C
Arp 47 – companion east of MCG+3-38-14 and star between MCG+3-38-14 and MAC 1447+1851
Arp 42 – both companions, MAC 1502+2320B and C of NGC 5829. Both are to the NW and W.
Arp 173 – south counter tail of UGC 9561
Arp 102 – north extension of UGC 10814
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
Steve,
I've been wondering if the red square nebula would work web page It's near infrared so it may be tough. Here's the Coords: RA/Dec = 18:21:15.9 -13:01:27 (J2000) V=14mag
Regards,
Hi Matt, thanks. I'm going to add it to the list. Although it may best be seen in the Near Infrared, the DSS visible light image shows its jet. Some detail of the cones may be visible but the diffraction spikes of the DSS print coincide with them so it's hard to tell.
Since the jet, in nIR, appears fainter than the 20 arc second wide cone features, who knows.... there may be parts of it visible.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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Steven,
As the moniker for your 36" suggests, "if it's up there, it's in here". Hopefully the red square will be a worthy challenge.
Clear Skies,
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Yea, my buddy Ron came up with that phrase after looking in the eyepiece. I'm sure there will be objects on the List that can't be seen, but that's ok. It will be fun and challenging.
Thanks, Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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bigdob24
member
Reged: 04/19/08
Posts: 106
Loc: Central Illinois
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These objects should be good targets for a Mallincam, I don't have a 30" plus scope but a 24" and a Mallincam should go deep.
What do ya think
Dan
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Dan, go for it! This is a pretty cool list for everyone.
http://darkskyobserving.com/WizardsChallenge.html
Anyone else have weird faint suggestions for the List?
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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ZielkeNightsky
sage
Reged: 10/01/06
Posts: 378
Loc: Denmark
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This is a great thread. Thanks, I now have some pretty hard targets to hunt.
Put Arp 148 on the list, I don't think its impossible with your big scopes.
--------------------
Lars
10", 8", 4" Newton
80mm Scopos
4" Achro
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Jimi
journeyman
Reged: 04/29/08
Posts: 7
Loc: Fort Davis Texas
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Hi Steve I got three of the objects on youre list last new moon with the 48Dob,HCG50 all 5 see with direct vision,confirmed by Van Robinson,Shk 1 all 17 seen with AV,this thing is Dim,confirmed by Van robinson,Hoags object, the ring would come and go with the seeing,the ring is bigger than I thought.confirmed by Jim chandler.
One object you might look at for the youre list is Zwicks neckless in virgo, 8ZW388.
Best
Jimi
--------------------
Jimi
25 F5 obsession
48 F4 T.E.C.,O.M.I
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Quote:
This is a great thread. Thanks, I now have some pretty hard targets to hunt.
Put Arp 148 on the list, I don't think its impossible with your big scopes.
Hi Lars, Arp 148 was observed with my 22" under NELM 6.8 skies.
Here are my observations.
22" f/4.1 reflector @ 255, 305, 377, 458 and 575x
MAC 1103+4050 required 575x and steady skies to be spotted intermittingly as an extremely faint round patch.
MCG+7-23-19 is a considerably faint, 3:2 elongated patch with no central brightening.
PA = 100ş and 20” long.
--------------------
Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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Here's some new or unusual ones: sdssj0946+1006 Double Einstein Ring It's a SDSS discovery verified by the HST
Or Just for eye candy Cleopatra's Eye NGC1535 NGC 1535
Or the cosmic horseshoe PDF- Research paper
Cheers,
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
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ZielkeNightsky
sage
Reged: 10/01/06
Posts: 378
Loc: Denmark
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Hi Alvin
Nice to read someone has seen the ring galaxy around Arp 148 through an EP.
I got it with my MallinCam with my 10", and yes the ring is very faint.
--------------------
Lars
10", 8", 4" Newton
80mm Scopos
4" Achro
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
|
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Quote:
Here's some new or unusual ones: sdssj0946+1006 Double Einstein Ring It's a SDSS discovery verified by the HST
Or Just for eye candy Cleopatra's Eye NGC1535 NGC 1535
Or the cosmic horseshoe PDF- Research paper
Cheers,
Hi Matt, thanks, I do have some Einstein rings on the list already and I found a drawing of NGC 1535 showing the dark markings in the center region, so I'm having trouble phrasing something unique or faint about it to put that one on the list....
Any others?
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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Humm, too passe, well how bout Gomez's hamburger IRAS 18059-3211. web page
I've only read about it, but it appears to be a real challenge. Let me know what you think.
APOD
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
Edited by cnstarz (05/21/08 08:40 PM)
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Matt, I'll put that one on the List as it's a very unique object. The Aintno list has seeing its central star, but that's absurd, my list has actually do-able/possibly do-able objects. So I'll list it as just seeing the burger.
Thanks
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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Here's another unique object for your consideration GLIESE 229 WIKI Maybe just a wintertime object, if at all.
Let me know what you think.
Clear Skies,
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
|
Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
|
|
Quote:
Here's another unique object for your consideration GLIESE 229 WIKI Maybe just a wintertime object, if at all.
Let me know what you think.
Clear Skies,
Hi Matt, I think the only thing people might find interesting about GLIESE 229 is GLIESE 229B, a nearly 25th magnitude brown dwarf star..., which is a little too faint, then factor in the glare of the GLIESE 229A.
An object I'm going to put on the List is "Seeing detail in the pillar's of Eagle/Star Queen Nebula" I've seen them in the 20" direct vision and a quick look with the 36" was jaw-dropping gorgeous, but now, do I see detail in the black dust trails of any of the spires.
http://www.daviddarling.info/encyclopedia/E/Eagle_Nebula.html
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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Steven,
Excellent target the Eagle Nebula, the pillars are astonishingly beautiful. I'll keep looking for things you may find interesting. We have had nothing but clouds for most of this month so at least I'm feeling productive.
Just a thought, have you ever split Castor into the 6 component stars? I think it would be pretty cool to see them all under high magnification.
Later,
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
|
Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
|
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Quote:
Steven,
Just a thought, have you ever split Castor into the 6 component stars? I think it would be pretty cool to see them all under high magnification.
Later,
Ummm, Matt, I think three of those six are spectroscopic....
However, how resolvable is Mayall II; M31's G1 globular? At 13.5 to 13.7 apparent magnitude, comprised of ~300,000 stars at 2.2 to 2.9Mly distant....? There seems to be some disagreement on distance but photos show many red giants and some blue stragglers that are significantly brighter than the general population. One would think there would be a subset of the 300,000 stars with a combined light equaling 13.5 to 13.7, whose brightest individuals are brighter than apparent mag 21 and resolved into graininess.
Thoughts anyone?
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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lymorkiew45
professor emeritus
Reged: 12/30/07
Posts: 735
Loc: In the dark, and way out there...
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How about the central star of the Bug nebula in Sagitarious, it's listed at 20th mag, and I think it's way beyond the reach of even professional telescopes, but give it a try...Jorgen
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Jorgen
Starfinder 16 dob: Zambuto Optics! 
DS-10
Orion XT12i: The optics are special! 
Z12
All the Lanthanum superwides!
Orion ultrablock filter
9mm Nagler type 6
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Orion Lazer Collimator
40" Webster: Under Construction 
http://cleardarksky.com/c/SanJoseCAkey.html?1
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lymorkiew45
professor emeritus
Reged: 12/30/07
Posts: 735
Loc: In the dark, and way out there...
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How about seeing the outer halo of the Owl nebula, this will be the ultimate challenge, it's approximately 1000 times fainter then the main body of the nebula, this will tests your telescope, and skills to the max...Jorgen
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Jorgen
Starfinder 16 dob: Zambuto Optics!
DS-10
Orion XT12i: The optics are special!
Z12
All the Lanthanum superwides!
Orion ultrablock filter
9mm Nagler type 6
15mm, 25mm, 35mm Ultrascopics
Orion Shorty Plus barlow
Orion Lazer Collimator
40" Webster: Under Construction
http://cleardarksky.com/c/SanJoseCAkey.html?1
20 years in Southern Dragon Kung Fu, or dragon style embellished in magical arms.
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lymorkiew45
professor emeritus
Reged: 12/30/07
Posts: 735
Loc: In the dark, and way out there...
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The faint stars in the owl nebula's eyes, one of them has mysteriously disappeared, and is not even visible in photographs, they are approximately 18th magnitude but lie hidden in the nebulosity which makes them even more challenging...Jorgen
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Jorgen
Starfinder 16 dob: Zambuto Optics!
DS-10
Orion XT12i: The optics are special!
Z12
All the Lanthanum superwides!
Orion ultrablock filter
9mm Nagler type 6
15mm, 25mm, 35mm Ultrascopics
Orion Shorty Plus barlow
Orion Lazer Collimator
40" Webster: Under Construction
http://cleardarksky.com/c/SanJoseCAkey.html?1
20 years in Southern Dragon Kung Fu, or dragon style embellished in magical arms.
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Jorgen, if the CS of the Bug Neb is 20th mag and it's wrapped in a nebula it's not likely visible.... The outer halo of the Ring is visible in the Infrared....
Any other suggestions? Any comments on G1?
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Starman1
Vendor - Scope City
Reged: 06/24/03
Posts: 12223
Loc: Los Angeles
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G1 in M31 is magnitude 13.7. I first saw it in an 8" SCT, but it's probably visible in a smaller scope.
Here's a link that has finder charts attached:
http://www.nightskyinfo.com/archive/g1_globular_cluster/
Photometry for the brighter members seems hard to find.
If magnitude 21, though, I wouldn't expect visibility in anything smaller than 2m, even in pristine skies.
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Don Pensack
12.5" Truss Dob, 5" Maksutov, Fujinon Binos
Sustaining Lifetime IDA member
Edited by Starman1 (05/23/08 08:07 PM)
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Tom Trusock
Reged: 02/26/02
Posts: 29971
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Here's an article on observing the brighter globulars in M31 including G1 - complete with observing notes, object information and finder charts.
http://cloudynights.com/item.php?item_id=1559
I have seen G1 with a halo (showing hints of resolution) in a 20" scope using a collins I3 image intensified eyepiece, and it's definitely fuzzy in large scopes with a regular eyepiece.
It's an amazing object.
T
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Hyperbole - undoubtedly the best thing ever.
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cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
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G1 sounds interesting, it would be a real feat to resolve it well for sure. Just about any glob would be fun in a monster scope, M31 I suspect would be dazzling.
I noticed you had some trans neptunian objects in your list. Have you heard of Buffy? 2004 XR190 It might be bright for your list, but kind of interesting sounding anyway.
I was looking at a description of the system around HD 188753 A Which is a triple star system with a hot Jupiter. It would be neat splitting them in a big scope knowing the planet was in there somewhere.
I would think that some of the more notoriously hard double splits would have a place on your list but I wouldn't know where to begin or how to gauge the difficulty there.
Clear Skies,
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
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Olivier Biot
Amused
Reged: 04/25/05
Posts: 16359
Loc: 51°N (Belgium)
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G1 is the first "extragalactic globular" I ever saw, and so far the only one. With the assistance of Tom T's Deep Andromeda article I hunted for it with my 8" f/10 TAL-200K while in rural France a couple years ago. It was at the edge of visibility on that particular night.
If you're looking for additional extragalactic globular clusters, take a look at the following thread: maps of M31 globs?
Cheers,
Olivier
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Prediction is very difficult, especially about the future. Niels Bohr
Tal-200K (#199) with JMI NGF-Mini2M focuser on GEM3 • Astro-Tech AT80ED • Orion Sirius EQ-G with wireless EQDIRECT • Astro-Tech Voyager • Celestron Regal LX 10x42 • Helios 15x70
ATM 14" f/5 (redesigning) • ATM 10" f/6 Portable Truss (polishing) • ATM 10" f/25 Dall-Kirkham (optics)
AstroForecast
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Tom, thanks! Resolving Mayall II is on the List. I suspected there would be hints of resolution given its overall brightness and close proximity to us. Those charts, including the ones from Don, will come in handy.
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
G1 sounds interesting, it would be a real feat to resolve it well for sure. Just about any glob would be fun in a monster scope, M31 I suspect would be dazzling.
I noticed you had some trans neptunian objects in your list. Have you heard of Buffy? 2004 XR190 It might be bright for your list, but kind of interesting sounding anyway.
I was looking at a description of the system around HD 188753 A Which is a triple star system with a hot Jupiter. It would be neat splitting them in a big scope knowing the planet was in there somewhere.
I would think that some of the more notoriously hard double splits would have a place on your list but I wouldn't know where to begin or how to gauge the difficulty there.
Clear Skies,
Hi Matt,
M31 is gorgeous….especially seeing the golden-orange colored core spanning more than my 32 arc-minute afov. The orange was obvious and I saw blue in the arms from all the supergiants. Seeing color in objects just blows me away and I’m surprised more of the clumps in M31 did not get NGC’s.
As for 2004 XR190, its magnitude 21.8, so pretty much out of the picture. I chose the second and third brightest KBO’s due to their relatively bright magnitudes. The problem will be finding/generating accurate finder charts.
Looking at a triple star knowing there is a Hot Jupiter there is interesting, but if there is no hope of seeing it I can’t really put it on the list.
Now double stars are something missing from the List…. DS’s are mostly atmosphere-limited, but so are some of the other items on the List, ‘best nights’ sort of items. The Dawes limit for the 36” is 0.126 arc-second. I may have to get some input from the Double Star guys on this one…. Anything below 0.5 will be tough I suppose, but we'll see if equal-brightness pairs exist for each season from 0.7 down to 0.1 in tenths.
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Quote:
G1 is the first "extragalactic globular" I ever saw, and so far the only one. With the assistance of Tom T's Deep Andromeda article I hunted for it with my 8" f/10 TAL-200K while in rural France a couple years ago. It was at the edge of visibility on that particular night.
If you're looking for additional extragalactic globular clusters, take a look at the following thread: maps of M31 globs?
Cheers,
Olivier
Thanks Oliver! The East Valley Astronomy Club of which I'm a member has some photo's with GC's identified:
http://www.robgendlerastropics.com/M31NMmosaicglobs.html
Maybe others will find these useful too!
Steven
--------------------
Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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buckaroo
Space Cowboy
Reged: 05/26/06
Posts: 1632
Loc: Underwood,Washington
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Here is a pic of g1 Hubble
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Steve
.742 meter f4.5 starmaster
12" f5.4 Teeter planet killer
10" f6 newt
sv102a f7.9
Atlas-g
Canon 1DmkIIn,40D,AE-1P,AE-1
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Thanks Buckaroo.... That'll come in handy in a month or two when M31 gets a little higher in the east before the Sun messes things up. OSP was great this year with five clear nights in a row, three of which were all-nighters (in a row), but I didn't have enough time with M31 to do much besides take in the golden-orange colored core.
As for other faint objects on the "Wizards Challenge", two were seen; 86: Detail in the pillar's of Eagle/Star Queen Nebula, and 30: Hickson 50 (PGC 34597) - Group of 5 galaxies in Uma. Hickson 50 was interesting but nothing like the view of the pillars. Direct vision of three distinct columns at my lowest power of 152x using an OIII and then at 526x with the OIII the pillars were no longer solid black but had mottling and swirls within them.
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Scott E
newbie
Reged: 06/13/08
Posts: 4
Loc: New York State
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Well, you may very well be the first person to observe Sh2-135. If no one else chimes in, and you've checked everywhere you can think of for reports, it's very possible.
I've spent the last several years at the Texas Star Party finding objects many assumed were unobservable, thanks to Larry Mitchell's challenge lists. This year, I gave HIM one to chew on. I have actually seen Hewett 1. I first saw it the night before the Winter Star Party began back in February. It was hard to confirm all week, and Sue French ,who tried it with me, was never fully convinced.
Then at TSP last week, I confirmed it. The next person who looked through the eyepiece was Jim Burnell, who had little trouble defining its extent.
The key here is not large aperture, but a large field and really dark skies. I used a Tele Vue NP101is, a 31mm Nagler and a UHC filter. That's a 4.5 degree field. Sweeping around helped to bring it out.
So with all the checking I've done, I believe I am the first to see Hewett 1. I'd really love to hear about anyone elses experience with this one.
Oh, and I've talked to a couple of guys who have seen JaFu1 and JaFu2, so you can cross those off the list as well.
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Scott Ewart
12.4" split-ring equatorial, Stellafane award winner
13" Coulter, modified (for sale)
8" f/6 Dob, (home made)
4.5" Newt (home made), EQ3 mount
Brass NP101, one of a kind
PST
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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Quote:
I've spent the last several years at the Texas Star Party finding objects many assumed were unobservable, thanks to Larry Mitchell's challenge lists. This year, I gave HIM one to chew on. I have actually seen Hewett 1. I first saw it the night before the Winter Star Party began back in February. It was hard to confirm all week, and Sue French ,who tried it with me, was never fully convinced.
Then at TSP last week, I confirmed it. The next person who looked through the eyepiece was Jim Burnell, who had little trouble defining its extent.
The key here is not large aperture, but a large field and really dark skies. I used a Tele Vue NP101is, a 31mm Nagler and a UHC filter. That's a 4.5 degree field. Sweeping around helped to bring it out.
So with all the checking I've done, I believe I am the first to see Hewett 1. I'd really love to hear about anyone elses experience with this one.
Oh, and I've talked to a couple of guys who have seen JaFu1 and JaFu2, so you can cross those off the list as well.
CONGRATULATIONS! I'd say you are probably the first to see Hewett 1. You're lucky you beat me to it- I tried in December 2006 from the Davis mountains at a location about 8 miles southwest of Prude Ranch and saw nothing. That was with an 18" Obsession and an OIII filter. It should be noted that while I love to track down faint and challenging objects, it seems that my vision is less sensitive than others, despite my young (23 years) eyes (limiting magnitude for me is never more than 6.8 or 6.9). I was using a rapid sweep technique that I have found highly effective in seeing very large objects, but still I saw nothing.
It makes sense that you could see it with the 4" refractor. The human eye requires objects span at least a certain amount of area to be seen well, and if a small scope can magnify at a 7mm exit pupil an object till it just about fills the field of view, then getting a bigger scope won't help in detecting that object much (a bigger scope will help to reveal further details though). Furthermore, an apo should have better contrast than a big dob.
One thing that does surprise me is you say you used a UHC filter. I would think an OIII filter would be best for that object. That said, it should be noted that Sh2-216, the other candidate for the closest planetary nebula to Earth, has a rather unusual spectrum it seems. Why do I say that? Because it's almost as easily visible unfiltered as it is with OIII!!!! A very odd object.
About how big would you say that Hewett 1 appeared? If I remember right, what I read on it said it should be about 2 degrees across, and evidence existed for a fainter outer envelope 10 degrees in diameter.
I do have a 4" refractor I could try on this object. It's not an apo but that doesn't matter.
Anyway, congrats again! You should try to spread the news around of your visual discovery. Personally, I've been trying without avail to convince imagers to take a crack at this object, as the POSS plates don't show much on it. A nice amateur image would be vastly better than the cruddy, grainy images I had seen in the Hewett 1 discovery paper. Apparently, amateur imagers are more interested in shooting M42 for the 1,000,000nth time than taking an image that might actually have some scientific value, but hey, to each his own I guess.
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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So who has other relatively obscure objects to add to the list? Many are features within prominent objects, so as to provide a two-fer, some eye-candy plus a challenge.... What other challenges lie within bright objects?
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Starman1
Vendor - Scope City
Reged: 06/24/03
Posts: 12223
Loc: Los Angeles
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How about the galaxy on the edge of Abell 70?
Or seeing the spiral arms of IC1296 right next to M57?
Or IC4617 next to M13?
Or the planetaries in M22 and M15?
Or seeing the galaxies through NGC7293?
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Don Pensack
12.5" Truss Dob, 5" Maksutov, Fujinon Binos
Sustaining Lifetime IDA member
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Hi Don,
Abell 70 actually looks very cool, thanks, that one is #89.
At my property where I host the Overgaard Star Party, I had some friends there over the weekend and we saw the spiral arms of IC1296, and the galaxy IC4617 next to M13 was a direct-vision object....
The planetary within M22 is on the list, but not Pease 1 in M15.
There are several rather bright galaxies within the oval ring of NGC 7293 that could pose a challenge. I'll investigate this one. There may even be viewable galaxies within the central region, as brightly lit up as that area is....
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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Alvin Huey
Carpal Tunnel
Reged: 10/18/05
Posts: 1831
Loc: NorCal
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Quote:
How about the galaxy on the edge of Abell 70?
Or seeing the spiral arms of IC1296 right next to M57?
Or IC4617 next to M13?
Or the planetaries in M22 and M15?
Or seeing the galaxies through NGC7293?
I saw spiral arms with a distinct stellar core on IC 1296 at SSP 2005 through Steve Kennedy's 28" f/3.66
IC4617 was a direct vision object in Darrell's (Snorkler) 18" at TSP 06
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Clear Skies,
Alvin #26
22" f/4.0 reflector and 30" f/4.3 StarMaster
FaintFuzzies | TAC | TAC-Sac
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Scott E
newbie
Reged: 06/13/08
Posts: 4
Loc: New York State
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John,
Quote:
One thing that does surprise me is you say you used a UHC filter. I would think an OIII filter would be best for that object.
Niether of my two OIII filters is ideal. The Lumicon seems too dark. It may be slightly off band. The Tele Vue is too wide. I should have tried them both after my success with the UHC, and I never even tried the UHC at WSP or I may have been more successful then as well. Anyway, Hewett 1 does have some known H output as well.
And I really have to try for Sh2-216 again. I tried from home a few months ago, but it's just not dark enough here. It's got me curious.
Quote:
About how big would you say that Hewett 1 appeared? If I remember right, what I read on it said it should be about 2 degrees across, and evidence existed for a fainter outer envelope 10 degrees in diameter.
I would estimate Hewett 1 at a little over 2 deg. based on my field size, but I didn't see the outer halo. I must admit I wasn't thinking about it at the time. I was just happy to be able to see it at all and I didn't notice shape (other than round) to it. I'll have to spend more time on this one some night.
Quote:
Personally, I've been trying without avail to convince imagers to take a crack at this object
I talked to Tim Puckett at NEAF. He expressed some interest, but did not respond to my email giving him the details. Jim Burnell may take a crack at it next season. And it may be a very long time indeed till someone captures a decent image of the outer halo.
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Scott Ewart
12.4" split-ring equatorial, Stellafane award winner
13" Coulter, modified (for sale)
8" f/6 Dob, (home made)
4.5" Newt (home made), EQ3 mount
Brass NP101, one of a kind
PST
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Scott E
newbie
Reged: 06/13/08
Posts: 4
Loc: New York State
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Quote:
How about the galaxy on the edge of Abell 70?
Or seeing the spiral arms of IC1296 right next to M57?
Or IC4617 next to M13?
Or the planetaries in M22 and M15?
Or seeing the galaxies through NGC7293?
Got it.
Got em. But if you've seen Tony Hallas' shot, its got an outer ring. (Need it)
Got it.
Got em both.
Need em. Never heard of that one. How many are there?
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Scott Ewart
12.4" split-ring equatorial, Stellafane award winner
13" Coulter, modified (for sale)
8" f/6 Dob, (home made)
4.5" Newt (home made), EQ3 mount
Brass NP101, one of a kind
PST
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Starman1
Vendor - Scope City
Reged: 06/24/03
Posts: 12223
Loc: Los Angeles
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picture 1: NGC7293 deep:
http://apod.nasa.gov/apod/ap070803.html
picture 2: galaxies in NGC7293
http://www.heavenlyview.com/ngc7293sxvh9c.htm
picture 3: galaxies in NGC7293: Aintno 45:
http://www.astronomy-mall.com/Adventures.In.Deep.Space/aintno.htm
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Don Pensack
12.5" Truss Dob, 5" Maksutov, Fujinon Binos
Sustaining Lifetime IDA member
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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What about the non-uniform texture, striated gauze (for lack of better words), of the interior of M57 as a challenge feature? This pic from SEDS shows most of it to be in the 468.6nm range, plus some in other wavelengths.
The most recent view of M57 showed it to be a bright teal colored interior, but it was a quick peek.
Just thinking out loud here...
Steven
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
Edited by Olivier Biot (06/25/08 05:16 PM)
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Ptarmigan
Carpal Tunnel
Reged: 09/23/04
Posts: 2356
Loc: Arctic
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Quote:
Thanks John,
Hewett 1, JaFu1, and JaFu2 are on the list (38, 39, and 40)!
I purposefully refrained from putting AGC's on the list. I've seen many but wanted a good variety of objects. My request is not to say "I'm the first to see it", though there may be things that I am, but by asking others what's cool/tough I get things I may not have thought of/known of.
Steven
I have never heard of those objects. What are they?
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Ptarmigans=Cute and Cuddly
Meade Starfinder 8
Nikon 10x50
Rebel XT
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Ptarmigan
Carpal Tunnel
Reged: 09/23/04
Posts: 2356
Loc: Arctic
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Abell 2065 and Hickson 50 are really faint. They push the observing limits.
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Ptarmigans=Cute and Cuddly
Meade Starfinder 8
Nikon 10x50
Rebel XT
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tatarjj
Pooh-Bah
Reged: 04/20/04
Posts: 1134
Loc: Austin, TX
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Quote:
Abell 2065 and Hickson 50 are really faint. They push the observing limits.
Well, not with big scopes. In fact, because of the constancy of surface brightness with respect to object distance, with a big enough scope you could even trace out spiral structure in members of Abell 2065.
Objects that would be truely faint would be very low surface brightness objects that are difficult in all scope sizes.
Hewett 1, JaFu 1, and JaFu 2 are all planetary nebulae.
Hey, I've got another object that could go on this list. It's a naked eye/ small scope object mostly. However, because there's some doubt to its very existance, perhaps it belongs on the AINTNO list:
Kordylewski cloud
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John T.
Austin, TX
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos
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MessierScott
sage
Reged: 06/18/07
Posts: 294
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Thanks to this list, I got a few off-the-beaten-path log entries this last week! I also finally got first light with my new Denk II binoviewers!
The ASKC held their annual Heart of America Star Party from June 27 - July 3.
Many nights were clouded over, but during 3 incredibly transparent nights I captured: planetary Me 2-1, galaxy PGC46714 (galaxy next to Mizar), planetary DHW 2-1, planetary GJJC in M22, galaxy PGC54559 (Hoag's Object), newly clasified globular AL-3, the actual Pillars of Creation in M16, the two anonymous galaxies SW of M12, and Parsamyan 21!
Plus I logged another 11 Arp galaxies, Hickson 50, a couple Local Group galaxies, and finished logging my last Milky Way globular north of declination -49 degrees !
Thanks to this list I'm constantly challenged to go deeper and further off the beaten path.
You never know what is visible until you try for it!
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Scott Kranz
20-inch f/4.3 Starmaster w/Zambuto mirror
7-inch Starmaster
H-alpha Coronado PST
Denkmeier II binoviewers w/24mm Panoptics
16x80 binos
Astronomical Society of Kansas City
Powell Observatory with 30-inch f/4.9 EQ newtonian
Astronomical League Messier, Meteor, Sunspotter, & Asteroid Observing Programs Coordinator
ASKC Dark Sky Site
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Steven Aggas
sage
Reged: 04/15/08
Posts: 463
Loc: Arizona
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Very cool.... Good job on knocking some off the list.
I'm still looking for more entries from everyone. How about the Horsehead in Hydrogen Alpha light.... 
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Mr. Wizard
Walking on a Dob: http://darkskyobserving.com/MtGraham.html
Elements in Harmony I, an 8"f6 German Equatorial - Stellafane Winner,
II a 20"f4.2 Newt-Dob - Astrofest Winner,
III a 6"f3.5 Finder/Newt-Dob, and
IV a 36"f4.5 Newt-Dob - "If it's up there, it's in here."
Apache-Sitgreaves Center for Astrophysics
www.DarkSkyObserving.com
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