· Get a Cloudy Nights T-Shirt · Submit a Review / Article Click here if you are having trouble logging into the forums 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] 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 Loc: 50°56' N - 4°58' E (Belgium) M27, with a 4 inch refractor.       #3185885 - 06/27/09 05:15 PM Attachment (113 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. Post Extras:       frank5817 Postmaster Reged: 06/13/06 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 Post Extras:       kraterkid Post Laureate Reged: 03/07/05 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! Post Extras:       4Texans super member Reged: 12/08/07 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. Post Extras:       CarlosEH Postmaster Reged: 01/19/05 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 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. Post Extras:       Tommy5 Carpal Tunnel Reged: 03/28/04 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 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. Post Extras:       Special Ed Postmaster Reged: 05/18/03 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! Post Extras:       rodelaet Post Laureate Reged: 04/28/06 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. Post Extras:       Kris. Carpal Tunnel Reged: 09/16/04 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! Post Extras:       rodelaet Post Laureate Reged: 04/28/06 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? Post Extras:       Kris. Carpal Tunnel Reged: 09/16/04 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... Post Extras:       WadeVC Carpal Tunnel Reged: 12/02/05 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! Post Extras:       rodelaet Post Laureate Reged: 04/28/06 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 Post Extras:       rodelaet Post Laureate Reged: 04/28/06 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. Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 1 registered and 3 anonymous users are browsing this forum. 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