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Fiske
Carpal Tunnel
Reged: 03/14/04
Posts: 2057
Loc: Missouri / United States
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I observed this planetary, which is just over the border from Lyra in Draco, from my backyard in midtown Kansas City last Monday evening. Whereas chasing galaxies is frustrating from an urban site, no matter how large your telescope, I have consistently found planetary nebula to be rewarding and fun thanks in no small measure to OIII and UHC narrowband filters. This is the first time I have observed 6742. It is not included in the Sky Atlas 2000. I used the Uranometria, 2nd ED., chart 33.
NGC 6742 PN Draco, KCMO, 6/30/08, 22-inch, 22 & 17mmT4, 22mmT4w2xPM, UHC filter, T:6/S:6. With the help of Martin Germano's astrophoto in the Night Sky Observer's Guide (2-184), I was able to observe this pn. It was faint in averted but I could hold it in view 85-90% of the time with the 17mmT4 (151.2x) and 100% of the time with the 22T4 & 2x Powermate (203.2x). All observations with UHC filter. The pn appeared as a small, smokey gray disk with fairly well defined edges surprisingly like the photo. I did not see any hint of color or a central star. I should probably concentrate on seeing how many stars I can pick out from Germano's image. Next time. This would be an excellent object to sketch, too. I look forward to trying it from a dark site.
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Fiske Miles
Nikon 8x42 LX / 12x50 SE Binos
Mini Borg 60ED, TV-101, AT80Ach, XT-8, C11/CI-700, 22-Inch Dob
Way too many Nagler eyepieces
http://www.fiskemiles.blogspot.com/
www.fiskemiles.com
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sgottlieb
sage
Reged: 07/22/07
Posts: 237
Loc: SF Bay area
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By the way, NGC 6742 also has the distinction of being relisted as Abell 50. Abell was a bit careless here searching for new planetaries on the POSS as the NGC position is within an arc minute of the planetary. Using higher power, here's how it looked in my 18" from a dark site in the Sierras --
18" (8/25/06): excellent view at 323x without a filter. The planetary appeared slightly elongated E-W, ~30"x25" with a slightly brighter rim giving a weakly annular appearance. A very faint 15th magnitude star is just off the NNE edge and a 16th magnitude star occasionally pops out at the west edge.
18" (7/19/04): beautiful view at 322x, appears moderately bright, fairly small, round, crisp-edged, ~30" diameter. The rim is slightly brighter giving a weak but definite annular appearance. A mag 15 star is just off the NNE edge and a mag 16 star is intermittently visible right at the west edge of the halo. Located 3.5' NE of mag 8.8 HD 176693.
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Steve Gottlieb
18" f/4.3 Starmaster
Adventures In Deep Space - New article on MASH planetaries
7500+ NGC/IC Visual Descriptions
NGC/IC Project
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Fiske
Carpal Tunnel
Reged: 03/14/04
Posts: 2057
Loc: Missouri / United States
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Steve:
Thanks so much for sharing your observation of 6742. I visited your NGCIC page -- over 6500 observations! Wow!
I would also like to say how pleased I am that Steve Coe and you have joined CloudyNights. The Night Sky Observer's Guide is a cornerstone of amateur astronomy. It is a pleasure to correspond with people who made major contributions to it.
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Fiske Miles
Nikon 8x42 LX / 12x50 SE Binos
Mini Borg 60ED, TV-101, AT80Ach, XT-8, C11/CI-700, 22-Inch Dob
Way too many Nagler eyepieces
http://www.fiskemiles.blogspot.com/
www.fiskemiles.com
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sgottlieb
sage
Reged: 07/22/07
Posts: 237
Loc: SF Bay area
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Quote:
Steve:
Thanks so much for sharing your observation of 6742. I visited your NGCIC page -- over 6500 observations! Wow!
I would also like to say how pleased I am that Steve Coe and you have joined CloudyNights. The Night Sky Observer's Guide is a cornerstone of amateur astronomy. It is a pleasure to correspond with people who made major contributions to it.
Thanks for the nice comments, Fiske. I'm going to keep a more regularly updated compilation of my NGC/IC notes at Adventures in Deep Space (link in signature), where there are now over 6850 NGC listings, many with multiple visual descriptions.
Speaking of NSOG, I just received the 3rd volume in the mail yesterday covering "The Southern Sky". I wasn't involved in this project, but for those who would like to drool over the southern showpieces not visible from North America or are planning to make a trip (I've done 3 to Australia), this looks like a great resource.
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Steve Gottlieb
18" f/4.3 Starmaster
Adventures In Deep Space - New article on MASH planetaries
7500+ NGC/IC Visual Descriptions
NGC/IC Project
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Fiske
Carpal Tunnel
Reged: 03/14/04
Posts: 2057
Loc: Missouri / United States
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Steve:
Thank goodness you are going to keep a more updated compilation. Sheeesh!! Less than 6800 observations on the previous page? What a slacker!
Thanks for the tip on the NSOG vol. 3. I have added it to my Astro Book Wish List.
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Fiske Miles
Nikon 8x42 LX / 12x50 SE Binos
Mini Borg 60ED, TV-101, AT80Ach, XT-8, C11/CI-700, 22-Inch Dob
Way too many Nagler eyepieces
http://www.fiskemiles.blogspot.com/
www.fiskemiles.com
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stevecoe
Reged: 04/24/04
Posts: 2114
Loc: Arizona, USA
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Fiske;
You know contributing to the NSOG showed up like fun. We made an observing list for a particular constellation that was up and we went out and viewed what we could and sent it all off to Bob Kepple and Glen Sanner. It became a magazine and then a series of books.
Enjoy;
Steve Coe
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150mm 6" f/8 Celestron Refractor on Sirius Mount
80mmED 3" f/7.5 Orion Refractor
Author "Deep Sky Observing" Springer-Verlag
Author "Nebulae and How to Observe Them" Springer
New Canon Xt astrocamera with Hutech modification
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Fiske
Carpal Tunnel
Reged: 03/14/04
Posts: 2057
Loc: Missouri / United States
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Steve:
I read in the Introduction that the NSOG was based on observations, drawings, and astrophotographs which were originally contributed to an amateur magazine and later turned into the the 2-volume set. Now, I guess a 3 volume set. This collaborative effort exemplifies the amateur astronomy community at its best. In my opinion, Cloudy Nights represents a similar spirit.
Another amateur effort, which was subsequently turned into a published volume is Robert Strong's Sky Atlas 2000 companion. In the latter case, if I understand correctly, Strong did most of the work himself and originally self-published until Sky & Tel brought out a commercial edition.
The NSOG and the SA2K Companion are my most used astronomical references. For scope and detail, nothing even gets close to the NSOG. Of course, I have Burnham's handbook in my astronomy library and enjoy it very much. But I use it for background reading and as a source of rich detail (albeit sometimes dated). I don't refer to it at the telescope.
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Fiske Miles
Nikon 8x42 LX / 12x50 SE Binos
Mini Borg 60ED, TV-101, AT80Ach, XT-8, C11/CI-700, 22-Inch Dob
Way too many Nagler eyepieces
http://www.fiskemiles.blogspot.com/
www.fiskemiles.com
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Jeff Young
Post Laureate
Reged: 08/04/05
Posts: 3146
Loc: Ireland
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Yes, indeed, the NSOG is also my bible; thanks to all who contributed to it (particularly the sketches).
Just to give back a little, here's my sketch of Abell 50 / NGC 6742 from last year:
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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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