· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> Sketching Previous   Index   Next   Threaded   Pages: 1 rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) M27, with a 4 inch refractor.       #3185885 - 06/27/09 05:15 PM Attachment (69 downloads) Edit   Reply   Quote Quick Reply   M27 is a very rewarding object for small telescopes. This planetary nebula is easily visible with a pair of binoculars ( see Binocular Icon 58 ). The view with my 4 inch refractor is truly impressive. M27 is so bright that its southern portion is even visible with direct vision. I had hoped to detect a few stars within the nebula, but without success. This planetary nebula appeared to be built up with three distinct features. The brightest feature is the hour glass. The next brightest structure is a soft rectangular that encompasses the hourglass shape. But the most rewarding element in the whole observation is the subtle glow of the ‘ears’ or lobes on each side of the dumbbell. The eastern lobe is more conspicuous than the western lobe. I noticed that these ears where visible at low power, while they disappeared at medium power. The best magnification for my refractor to observe the ears during these midsummer nights is around 30x, while most of the details of the sketch are drawn at 63x. Site : Bekkevoort, Belgium ( 51° N ) Date : June 23, 2009 Time : around 23.30 UT Scope : Skywatcher 102/500mm achromatic refractor Eyepiece : Baader Hyperion Zoom at 8mm Magnification : 63x FOV: 65’ Filter : none Seeing : 3/5 Transp. : 3/5 Sky brightness : 19.72 magnitudes per square arc second near zenith (SQM reading). Nelm: 5.5 Sketch Orientation: N up, W right. Digital sketch made with Corel Paint Shop Pro X2, based on a raw pencil sketch. -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       frank5817 Post Laureate Reged: 06/13/06 Posts: 4095 Loc: Illinois Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3186137 - 06/27/09 08:54 PM Edit   Reply   Quote Quick Reply   Rony, I was observing M-27 for the first time this year just last evening. As you say it is an impressive planetary with layers of detail. Your drawing of it here is just super. This like your binocular sketches is a testament to your masterful drawing and observing skills. Frank -------------------- my gallery Post Extras:       kraterkid Post Laureate Reged: 03/07/05 Posts: 4578 Loc: Jacumba, California Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3186152 - 06/27/09 09:11 PM Edit   Reply   Quote Quick Reply   Rony, Your sketches are astonishing for their detail, accuracy and subtlety! I'm just captivated by the way the you rendered the hourglass and the beautiful transition to the lobes. Masterful work with the star field and star glow. Wonderful skyglow! I'm there at the eyepiece Rony! WOW! -------------------- Rich My CN Gallery Post Extras:       4Texans super member Reged: 12/08/07 Posts: 103 Loc: TX Re: M27, with a 4 inch refractor. [Re: kraterkid]       #3186392 - 06/27/09 11:47 PM Edit   Reply   Quote Quick Reply   Reminds me of a Tri X B&W photo. Beautiful work. -------------------- Meade LXD-75 8" S/N Meade 826C Tal 100R 7x50 binoculars Post Extras:       CarlosEH Post Laureate Reged: 01/19/05 Posts: 4150 Loc: Pembroke Pines, Broward County... Re: M27, with a 4 inch refractor. [Re: 4Texans]       #3186718 - 06/28/09 09:02 AM Edit   Reply   Quote Quick Reply   Rony, An outstanding and very accurate observation of the Dumbbell Nebula (M27) in your 4-inch (10-cm) refractor. I feel as if I am standing next to you observing the Dumbbell Nebula. Thank you for sharing it with us all. Carlos -------------------- Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: M27, with a 4 inch refractor. [Re: CarlosEH]       #3189216 - 06/29/09 04:14 PM Edit   Reply   Quote Quick Reply   Frank, Rich, 4Texans and Carlos, Thank you very much! I hope you'll enjoy the summer milkyway as much as I do. -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       Tommy5 Carpal Tunnel Reged: 03/28/04 Posts: 1824 Loc: Chicagoland Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3189563 - 06/29/09 06:54 PM Edit   Reply   Quote Quick Reply   very nice, realistic sketch of his large planetary nebula.Thanks for posting. Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: M27, with a 4 inch refractor. [Re: Tommy5]       #3198579 - 07/04/09 12:08 PM Edit   Reply   Quote Quick Reply   Thank you, Tommy. -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       Special Ed Post Laureate Reged: 05/18/03 Posts: 4309 Loc: Greenbrier Co., WV 38N, 80W Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3200198 - 07/05/09 11:48 AM Edit   Reply   Quote Quick Reply   Rony, Excellent work. The subtle transitions make this rendering very realistic. I was fortunate to get a look at this object through a 16" (40cm) Lightbridge last weekend--what a view! -------------------- Michael Rosolina 8" f/10 Orange Tube SCT 4.25" f/4.2 Astroscan Reflector SVP 3.6" f/13.6 CA Reflector 40mm PST f/10 APM Germany HD 15x70 binoculars Canon 12x36 IS II binoculars Mark I Eyeball My CN Gallery Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: M27, with a 4 inch refractor. [Re: Special Ed]       #3202580 - 07/06/09 05:25 PM Edit   Reply   Quote Quick Reply   Thanks, Michael! I guess that a 16" impression would keep me glued to the eyepiece for half a night. -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       Kris. Pooh-Bah Reged: 09/16/04 Posts: 1276 Loc: Belgium Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3203840 - 07/07/09 10:28 AM Edit   Reply   Quote Quick Reply   wow! somehow i missed this post excellent representation of the dumbell nebula Rony! -------------------- Kris To be old & wise, you first gotta be young & stupid 8" dob AstroTech 66ED/APO TAL 120 newt. my CN sketch & picture gallery Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: M27, with a 4 inch refractor. [Re: Kris.]       #3204540 - 07/07/09 04:20 PM Edit   Reply   Quote Quick Reply   Thank you, Kris. See you at Starnights 2009? -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       Kris. Pooh-Bah Reged: 09/16/04 Posts: 1276 Loc: Belgium Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3221426 - 07/16/09 12:40 PM Edit   Reply   Quote Quick Reply   unfortunately i can only come, perhaps, friday to observe, but i'm afraid i won't make it! there's a wedding at saturday... -------------------- Kris To be old & wise, you first gotta be young & stupid 8" dob AstroTech 66ED/APO TAL 120 newt. my CN sketch & picture gallery Post Extras:       WadeVC Carpal Tunnel Reged: 12/02/05 Posts: 2831 Loc: Lodi, California, Re: M27, with a 4 inch refractor. [Re: rodelaet]       #3222664 - 07/17/09 12:57 AM Edit   Reply   Quote Quick Reply   Rony, Rony, Rony...that is just such an awesome sketch! I have always enjoyed your renderings and sketches, and this one is no exception, absolutely wonderful! PS: The Andromeda sketch hangs proudly in my office! -------------------- Orion XTi10 f/4.7 Orion XTi8 f/5.9 Meade NGC 70mm f/10 Orion UltraView 10x50 Wide-Angle Binoculars My Sketch Gallery My Astronomy Blog A wise man can see more from the bottom of a well than a fool can from a mountain top. Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: M27, with a 4 inch refractor. [Re: Kris.]       #3227931 - 07/20/09 07:53 AM Edit   Reply   Quote Quick Reply   Kris, Might not make it either, due to workload! Rony -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: M27, with a 4 inch refractor. [Re: WadeVC]       #3227935 - 07/20/09 07:54 AM Edit   Reply   Quote Quick Reply   Hi Wade! Thank you for the kind words. -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 1 registered and 0 anonymous users are browsing this forum. 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