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Observing >> Deep Sky Observing

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Matthew Ota
Pooh-Bah


Reged: 04/30/05
Posts: 1096
Loc: New England
New planetary Nebula discovered?
      #3255459 - 08/05/09 10:52 AM Attachment (68 downloads)

Matthias Kronberger of Austria discovered a Planetary Nebula at coordinates : 19 37 43.77 -13 51 20 with a size of approx. 0.7'x0.45' .
The PN is ~1.5 deg.from NGC 6818 and easily found 6' N of the 7th mag star SAO 162831

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Matthew Ota
Meade LX250GPS 10 inch SCT (Frankenscope)
Orion ED 80
ETX-90 OTA
Coronado Helios 1 H-alpha
TheSky 6 Pro


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Taylor
professor emeritus
*****

Reged: 07/10/05
Posts: 558
Loc: Federal Way, WA
Re: New planetary Nebula discovered? new [Re: Matthew Ota]
      #3255495 - 08/05/09 11:15 AM

Nice! Lots of new discoveries lately...

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Some OTAs, a mount, some eyepieces, and some cameras


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Bill Weir
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Reged: 06/01/04
Posts: 1299
Loc: Metchosin (Victoria), Canada
Re: New planetary Nebula discovered? new [Re: Taylor]
      #3255520 - 08/05/09 11:32 AM

Yeh, read about this last week. It's on my list for after the Moon goes away. It's been detected in as small as a 15" so I'll give it a go with my 12.5. If that doesn't work, I'll open the dome and point the 25" at it.

Bill

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6'' Orion SkyQuest
12.5'' f/5 Custom Truss Dob
William Optics 80mm ZenithStar ED II
f/5 25" newtonian on a giant GEM, any time I want

Observing sessions grand total for 2008, 121.
So far in 2009, 92


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Dain
Carpal Tunnel
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Reged: 03/24/05
Posts: 1596
Loc: N.Y. Adirondack Mnts. NGC 4565...
Re: New planetary Nebula discovered? new [Re: Bill Weir]
      #3255790 - 08/05/09 02:07 PM

Sweet! Discoveries rule!

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Best,
Dain
Adirondack Mountains (my true dark sky site)
@ Cedar River Flow




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Ptarmigan
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Reged: 09/23/04
Posts: 2366
Loc: Arctic
Re: New planetary Nebula discovered? new [Re: Matthew Ota]
      #3261894 - 08/08/09 07:39 PM

Cool. I wonder if this object was ever noticed before? Great discovery!

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Ptarmigans=Cute and Cuddly
Meade Starfinder 8
Nikon 10x50
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fred1871
member


Reged: 03/22/09
Posts: 32
Loc: Canberra, Australia
Re: New planetary Nebula discovered? new [Re: Ptarmigan]
      #3262029 - 08/08/09 09:27 PM

I don't know if it was noticed before (some objects are re-discovered from time to time) but it's plainly visible on the red image from the Digitized Sky Survey, and the plates for that were taken quite a few years ago.

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Bill Weir
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Loc: Metchosin (Victoria), Canada
Re: New planetary Nebula discovered? new [Re: fred1871]
      #3262401 - 08/09/09 02:37 AM

That's the point of the wonder of this. The potential to have been notice before, but wasn't. So much data is collected these days with so little of it being looked at. This is why the Deep Sky Hunters group does what they do. There is so much more out there to be discovered.

This object is at the top of my observing list.

Bill

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6'' Orion SkyQuest
12.5'' f/5 Custom Truss Dob
William Optics 80mm ZenithStar ED II
f/5 25" newtonian on a giant GEM, any time I want

Observing sessions grand total for 2008, 121.
So far in 2009, 92


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sgottlieb
sage


Reged: 07/22/07
Posts: 344
Loc: SF Bay area
Re: New planetary Nebula discovered? new [Re: Bill Weir]
      #3262434 - 08/09/09 03:31 AM

I observed this new planetary (listed as galaxy PGC 932285 in LEDA) with Dana Patchick a couple of weeks back (July 25th) at Lake Sonoma (SQM-L readings between 21.39-21.46 that evening) in my 18" f/4.3 Starmaster as well as Greg Laflamme's compact 22" f/3.7. Lake Sonoma is my "nearby" site, an 80-minute drive from Berkeley into the beautiful Sonoma county vineyards.

In my scope at 275x (unfiltered) it appeared as a small, hazy spot with a mag 14.5-15 star at or just off the SE end. The main glow was ~15" in diameter and had a very low surface brightness. The shape seemed slightly irregular or elongated, though it was really too faint to pin down a distinct outline. Occasionally an extremely faint superimposed star was seen.

This discovery can be found 6.3' NNW of mag 6.9 HD 185044 and forms a small triangle with two 14.5-magnitude stars 1.6' WNW and 2' N. There's a faint, very close double star just 1.5' SW of the planetary and I must admit we initially mistook this unresolved double for the planetary!

We also spent close to an hour observing the object in Greg's 22" at various magnitudes using a UHC and OIII filters. At 462x, the star off the SE end was cleanly resolved and the planetary displayed a moderate contrast gain using a UHC filter (easy to hold continuously). I felt the UHC filter gave a better contrast boost over the OIII, though perhaps at a lower magnification the OIII would have been more helpful. The overall size seemed roughly 20"x15".

The total magnitude is perhaps 15 and I'm guessing a 12-inch should pull in this object (or perhaps smaller in exceptional conditions). Hopefully others will take on the challenge.

--------------------
Steve Gottlieb
18" f/4.3 Starmaster
Adventures In Deep Space
7500+ NGC/IC Visual Descriptions
NGC/IC Project


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OldDeadOne
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Reged: 09/09/06
Posts: 1143
Loc: West Virginia
Re: New planetary Nebula discovered? new [Re: sgottlieb]
      #3262686 - 08/09/09 09:02 AM

Needs a Hubble closeup of this!

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Bert O'Dell

PROUD GOTO USER
LX200 10" Classic
various meade plossi's eyepieces
Konig MX70 40mm" eyepiece
11mm T6
7mm T1
Insane under a full moon
I duck from Iron Skillets
Charleston WV clearsky



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Dennis_Oz
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Reged: 08/20/06
Posts: 302
Loc: Brisbane, Australia
Re: New planetary Nebula discovered? new [Re: OldDeadOne]
      #3265404 - 08/10/09 07:55 PM Attachment (27 downloads)

Hello,

I first read about this new PN from a post by one of the locals (Ron Knight) on the Australian “Ice In Space” Astronomy Forum and managed to grab an image last night despite my mag. 4 skies and an 80% Moon.

This really requires a dark sky to do it any justice! Tak Mewlon 180 F12 with x0.8 Reducer. 10 x 15 minute exposures with ST7 ccd camera.

Cheers

Dennis


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astronron
member


Reged: 04/27/08
Posts: 44
Loc: Queensland Australia
Re: New planetary Nebula discovered? new [Re: Dennis_Oz]
      #3266419 - 08/11/09 09:44 AM

Thanks Dennis
This is my observation of Monday 10/08/09.
New Planetary Nebula? Report
10:08 UT 08:20 pm Local.Planetary Nebula hinted at in 13mm nagler as a slight small gray haze against the background, no detail
6 mm Radian,304xmag was able to see a slight roundish patch with 14-15 mag stars coming into view in moments of very good seeing.
6 mm Radian with 2xBarlow 608xmag was able to bring out the 2 stars but Nebula was much fainter.
O111 filter was no help at all next filter purchase will be a UHC

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Ron
16"Truss Newtonian
8" Celestron SCT
15x65 Binoculars
Roll off roof observatory
2 acre dark site

Edited by astronron (08/12/09 08:42 AM)


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Dain
Carpal Tunnel
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Reged: 03/24/05
Posts: 1596
Loc: N.Y. Adirondack Mnts. NGC 4565...
Re: New planetary Nebula discovered? new [Re: astronron]
      #3267494 - 08/11/09 08:06 PM

Would love to try and grab this one in my 8" in some dark skies. Love the most challenging objects to go after.

Clear Skies to you All!

--------------------
Best,
Dain
Adirondack Mountains (my true dark sky site)
@ Cedar River Flow




Local Site


Clear Skies?


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astronron
member


Reged: 04/27/08
Posts: 44
Loc: Queensland Australia
Re: New planetary Nebula discovered? new [Re: Dain]
      #3268312 - 08/12/09 08:40 AM

I think it would be a bit out of the range of an 8" scope but give it a go anyway, you never know what you can achieve unless you try
Cheers
Ron

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Ron
16"Truss Newtonian
8" Celestron SCT
15x65 Binoculars
Roll off roof observatory
2 acre dark site


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Dain
Carpal Tunnel
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Reged: 03/24/05
Posts: 1596
Loc: N.Y. Adirondack Mnts. NGC 4565...
Re: New planetary Nebula discovered? new [Re: astronron]
      #3268322 - 08/12/09 08:51 AM

Hey AstroRon- You got that right, sir! I thought an 8" would be a little small for it but just as you said, you never know unless you try.

--------------------
Best,
Dain
Adirondack Mountains (my true dark sky site)
@ Cedar River Flow




Local Site


Clear Skies?


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Hoondiggi95
member


Reged: 04/22/09
Posts: 11
Re: New planetary Nebula discovered? new [Re: Dain]
      #3272315 - 08/14/09 12:50 PM

Then maybe ill just "try" this in my 3 inch scope. lol just kidding!

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Bill Weir
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Reged: 06/01/04
Posts: 1299
Loc: Metchosin (Victoria), Canada
Re: New planetary Nebula discovered? new [Re: Dain]
      #3272514 - 08/14/09 02:19 PM

Quote:

Hey AstroRon- You got that right, sir! I thought an 8" would be a little small for it but just as you said, you never know unless you try.




Giver a go Dain. I'm often seeing you stating that your 8" often shows as much as much bigger scopes. I think in a case such as this your scope might be choking on the dust of bigger glass. ; )

Tonight I'll be setting my 12.5" outside the dome holding the 25" and give it a go with both scopes. From my latitude though, Sagittarius is so low. I fear moisture over the ocean might be a problem. I think next week at 6000' in the desert of southern British Columbia, might give me a better chance.

Bill

--------------------
6'' Orion SkyQuest
12.5'' f/5 Custom Truss Dob
William Optics 80mm ZenithStar ED II
f/5 25" newtonian on a giant GEM, any time I want

Observing sessions grand total for 2008, 121.
So far in 2009, 92


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Sirius76
super member


Reged: 05/11/07
Posts: 128
Loc: Chicago, Il
Re: New planetary Nebula discovered? new [Re: Bill Weir]
      #3273324 - 08/14/09 10:38 PM

Just out of curiousity, has anyone determined its approximate visual magnitude?

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Clear skies,
Dragan Nikin
Sirius76
Chgo Il


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sgottlieb
sage


Reged: 07/22/07
Posts: 344
Loc: SF Bay area
Re: New planetary Nebula discovered? new [Re: Sirius76]
      #3273336 - 08/14/09 10:46 PM

Quote:

Just out of curiousity, has anyone determined its approximate visual magnitude?




Here's the last line of my observing report above --

"The total magnitude is perhaps 15 and I'm guessing a 12-inch should pull in this object (or perhaps smaller in exceptional conditions). Hopefully others will take on the challenge."

--------------------
Steve Gottlieb
18" f/4.3 Starmaster
Adventures In Deep Space
7500+ NGC/IC Visual Descriptions
NGC/IC Project


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Sirius76
super member


Reged: 05/11/07
Posts: 128
Loc: Chicago, Il
Re: New planetary Nebula discovered? new [Re: sgottlieb]
      #3273432 - 08/14/09 11:52 PM

Thanks Steve! I read your post but that last line just didn't register with me.....

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Clear skies,
Dragan Nikin
Sirius76
Chgo Il


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Bill Weir
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Reged: 06/01/04
Posts: 1299
Loc: Metchosin (Victoria), Canada
Re: New planetary Nebula discovered? new [Re: sgottlieb]
      #3278945 - 08/18/09 12:32 AM

Quote:

Quote:

Just out of curiousity, has anyone determined its approximate visual magnitude?




Here's the last line of my observing report above --

"The total magnitude is perhaps 15 and I'm guessing a 12-inch should pull in this object (or perhaps smaller in exceptional conditions). Hopefully others will take on the challenge."




And here's an answer;

Last night from the west side of the continent, I observed it with my f/5 12.5 inch, from the observing platform at the observatory at Lester B. Pearson College on southern Vancouver Island. It was not easy, as the conditions were not ideal transparency wise. I could first detect it at 182X with an Ultrablock filter. At 240x and the same filter it was still there but the outer edge was harder to define.

I had wanted to go into the dome and get a look with the Eq f/5 25" newtonian but there were tours going on for a 20th reunion so I never got a chance before fog off the Pacific rolled into that area and shut down the whole southern horizon. Hoping for a better look later this week at 6000ft and drier air.

So, so far 12.5" is an answer, because I've read it was also done at Stellafane with a 12.5" scope.

Bill

--------------------
6'' Orion SkyQuest
12.5'' f/5 Custom Truss Dob
William Optics 80mm ZenithStar ED II
f/5 25" newtonian on a giant GEM, any time I want

Observing sessions grand total for 2008, 121.
So far in 2009, 92


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nytecam
Postmaster


Reged: 08/20/05
Posts: 5760
Loc: London UK
Re: New planetary Nebula discovered? new [Re: Dennis_Oz]
      #3290500 - 08/24/09 02:57 AM Attachment (11 downloads)

Great image here's my widefield shot [North up 1deg high fov] from last night to ~mag 14 stars but PNe not recorded but pesky plane was Very low from UK and cloud intervened before 12"SCT try

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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
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MessierScott
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Reged: 06/18/07
Posts: 294
Re: New planetary Nebula discovered? new [Re: Matthew Ota]
      #3300458 - 08/28/09 05:34 PM

We had clear skies this past new moon weekend......

from my logbook:

new planetary nebula 2° NW of Barnard's Galaxy
19 37 43.72
-13 51 20.2

2009-08-21 22:32 CDT
ASKC DSS
seeing ='2'
SQM = 21.47
20-inch dob
9mm Nagler = 15' = 279x

Very low surface brightness. Seen initially as it moved into the field of view, but then was gone. Unable to hold with d/v, but held more than 75% of the time with a/v. Very diffuse edges all around. Rough shape was possibly extended N/S by no more than 2:1. Some scope tapping helped a/v. O3 didin't seem to help, but the UHC did make it a bit more apparent with a/v. 27' N of a 5th mag star, and 6' NNW of a 7th mag star. A 14th mag star lies about 2' WNW. A very faint star is just off the very SE edge.

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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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Alvin Huey
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Reged: 10/18/05
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Loc: NorCal
Re: New planetary Nebula discovered? new [Re: MessierScott]
      #3304255 - 08/30/09 04:16 PM

Just updated my free Planetary Nebula guide with this and a few other newly discovered planetary nebulae. Here

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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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