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With the ansae visible this planetary nebula very much resembles a blue version of the planet Saturn with its rings edge on. At high magnification the white dwarf central star is easily detectable with 18” of aperture although the view is much better under dark transparent skies. Sketching: NGC 7009 Saturn Nebula (planetary) Date and Time: 8-25-2009, 4:15 4:50 UT Scope: 18” f/5 Dobsonian. 24 mm eyepiece 95x 8”x12” white sketching paper, 2H, HB, graphite pencils, light brown color pencil, blending stump, scanned and inverted Seeing: Pickering 7/10 Transparency: Average 3/5 Faintest stars visible overhead 4.3 Temperature: 20°C (68°F) Nebula magnitude: 8.0, Central star 11.5 Distance: 2000-4000 ly Location Constellation: Aquarius Position: R.A. 21 hrs 4 min Dec. -11° 22' Frank McCabe Post Extras:       Aldebaran super member Reged: 09/30/06 Loc: Turku, Finland Re: Saturn Nebula NGC 7009 [Re: frank5817]       #3295288 - 08/26/09 11:13 AM Edit   Reply   Quote Quick Reply   Good work, Frank! Nice observation and report! Post Extras:       kraterkid Post Laureate Reged: 03/07/05 Loc: Jacumba, California Re: Saturn Nebula NGC 7009 [Re: Aldebaran]       #3295307 - 08/26/09 11:22 AM Edit   Reply   Quote Quick Reply   Excellent sketch and report Frank! Especially impressive because you captured this beauty in a fairly light polluted area. Post Extras:       Jef De Wit Carpal Tunnel Reged: 03/06/09 Loc: Hove, Belgium Re: Saturn Nebula NGC 7009 [Re: kraterkid]       #3295799 - 08/26/09 03:14 PM Attachment (52 downloads) Edit   Reply   Quote Quick Reply   Frank, nice sketch. I observed the nebula the 3th of this month with my 30 cm Dobson, also in suburban region with the Moon in the sky (NELM 4). But I din't see at x171 the "ring" or the central star. I noticed some green (and not blue). Post Extras:       Tommy5 Carpal Tunnel Reged: 03/28/04 Loc: Chicagoland Re: Saturn Nebula NGC 7009 [Re: Jef De Wit]       #3296169 - 08/26/09 06:09 PM Edit   Reply   Quote Quick Reply   Very cool sketches Jef and Frank i have never seen this nebula but now i feel as if i have thanks for sharing. Post Extras:       frank5817 Postmaster Reged: 06/13/06 Loc: Illinois Re: Saturn Nebula NGC 7009 [Re: Tommy5]       #3296247 - 08/26/09 06:49 PM Edit   Reply   Quote Quick Reply   Juha,Rich,Jef,and Tommy5, Thank you all for your comments. I was back and forth with an ultrablock nebula filter which I did not attach to the eyepiece. I was using the filter to get the shape. With the filter this nebula looks greener and without the filter it looks more like an aqua blue to my eye. I see the "cat's eye" NGC 6543 as a green with or without a filter. With both of these planetaries I have no trouble with the central star unless I use a filter then the star is not visible. Jef, very nice sketch of NGC 7009 and in your sketch on my monitor your nebula looks more blue than green to my eyes. Maybe I have a fundamental problem with my colors? I chose a light brown color pencil for this sketch because inverted it was the closest color to what I saw at the eyepiece. Frank Post Extras:       JayinUT I'm not Sleepy Reged: 09/19/08 Loc: Utah Re: Saturn Nebula NGC 7009 [Re: frank5817]       #3296922 - 08/27/09 12:47 AM Edit   Reply   Quote Quick Reply   Frank, I love your capture of this fun planetary. I haven't looked at it in over a year now so perhaps tomorrow night I will have to sneak a peak and a new sketch. I agree on the central star, not to hard to observe unless one leaves the filter on. I use an ultrablock also and I also see a more greener look on this one. The Hubble Image has always reminded me of a piece of wrapped up salt water taffy. Post Extras:       frank5817 Postmaster Reged: 06/13/06 Loc: Illinois Re: Saturn Nebula NGC 7009 [Re: JayinUT]       #3297327 - 08/27/09 09:08 AM Edit   Reply   Quote Quick Reply   Jay, Thank you for your comments. Like you I examine this planetary about one time per year. My sky is so light polluted I usually wait for this one to reach the south meridian then I only need to move the scope to the correct altitude which for me is 37° 37' for this target. Frank Post Extras:       Tom Machtemes super member Reged: 06/09/08 Loc: Evergreen Park, Ill. Re: Saturn Nebula NGC 7009 [Re: frank5817]       #3297469 - 08/27/09 10:22 AM Edit   Reply   Quote Quick Reply   Frank, , nice sketch. , Tom Post Extras:       Jef De Wit Carpal Tunnel Reged: 03/06/09 Loc: Hove, Belgium Re: Saturn Nebula NGC 7009 [Re: Tom Machtemes]       #3297879 - 08/27/09 02:16 PM Edit   Reply   Quote Quick Reply   Frank It's normal that you don't see any green in my sketch. I made it without colouring (just pencil on white paper and inverted). The green colour was only visible by x92. By x171 (the magnification of the sketch) I didn't noticed any colour. I tried Lumicon UHC, but it didn't make the nebula any better. Post Extras:       CarlosEH Postmaster Reged: 01/19/05 Loc: Pembroke Pines, Broward County... Re: Saturn Nebula NGC 7009 [Re: Jef De Wit]       #3298844 - 08/27/09 10:50 PM Edit   Reply   Quote Quick Reply   Frank and Jef, Excellent observations of the Saturn Nebula (NGC 7009). The lobes ("rings") were well rendered in Frank's observation. Thank you both for sharing them with us all. Carlos Post Extras:       frank5817 Postmaster Reged: 06/13/06 Loc: Illinois Re: Saturn Nebula NGC 7009 [Re: CarlosEH]       #3299108 - 08/28/09 01:24 AM Edit   Reply   Quote Quick Reply   Tom, Jef and Carlos, Thank you much for your comments on my sketch. Jef- I think I may need to make an appointment with an opthamologist. Frank Post Extras:       Jeff Young Post Laureate Reged: 08/04/05 Loc: Ireland Re: Saturn Nebula NGC 7009 [Re: frank5817]       #3299880 - 08/28/09 12:23 PM Edit   Reply   Quote Quick Reply   Nice sketches, guys. I have four observations logged: one mentions blue, one mentions blue-green, and the other two don't mention color at all. Go figure. -- Jeff. Post Extras:       rolandlinda3 Post Laureate Reged: 01/24/06 Loc: Crozet VA 22932 Re: Saturn Nebula NGC 7009 [Re: Jeff Young]       #3299911 - 08/28/09 12:38 PM Edit   Reply   Quote Quick Reply   Very nice and such a pretty object, too. This is an interesting target with color-astrovideo as well but it has been some time since I have looked at it. Nice report. Post Extras:       mickmrn1 member Reged: 05/18/08 Loc: Mesa, Arizona Re: Saturn Nebula NGC 7009 [Re: rolandlinda3]       #3300706 - 08/28/09 07:26 PM Edit   Reply   Quote Quick Reply   Impressive sketch! I like the color and ring detail in this one. Post Extras:       frank5817 Postmaster Reged: 06/13/06 Loc: Illinois Re: Saturn Nebula NGC 7009 [Re: mickmrn1]       #3300994 - 08/28/09 10:42 PM Edit   Reply   Quote Quick Reply   Jeff, Roland and Michelle, Color perception of planetaries seems to vary a little for me. If I observe planetaries after being in the dark for several hours I see the distinctions in color better. Transparency of the sky also seems to play a role. Thank you for your comments and nice words. Frank Post Extras:       Special Ed Postmaster Reged: 05/18/03 Loc: Greenbrier Co., WV 38N, 80W Re: Saturn Nebula NGC 7009 [Re: frank5817]       #3302336 - 08/29/09 05:15 PM Edit   Reply   Quote Quick Reply   Frank, Nice sketch and an interesting target, too--doubly so if the Great Herschel first saw it. I have never observed it--after the Moon wanes might be a good time while the real Saturn is lost in the glare of the Sun. Edited by Special Ed (08/29/09 05:18 PM) Post Extras:       frank5817 Postmaster Reged: 06/13/06 Loc: Illinois Re: Saturn Nebula NGC 7009 [Re: Special Ed]       #3302820 - 08/29/09 10:33 PM Edit   Reply   Quote Quick Reply   Michael, Thank you. It is worth a look. With your sky much darker than mine I think you will enjoy the view. Frank Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 2 registered and 6 anonymous users are browsing this forum. 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