· 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) Binocular Icon 43 : NGC 1647 in Taurus.       #2728656 - 10/31/08 05:24 PM Attachment (33 downloads) Edit   Reply   Quote Quick Reply   NGC 1647 in Taurus. A large but scattered cluster of faint stars can be found at about 4° NE of Aldebaran. With an apparent size of 45’, NGC 1647 is an interesting binocular object. My 15x70’s show a loose gathering of about 30 mag 9 or fainter stars. Near the centre of the cluster, a close pair of mag 9 stars forms the brightest member of this 100 million years old cluster. This pair of stars is also called AG 311. Their separation is 32”. The true size of the cluster is estimated at 33 l-y at a distance between 1800 and 2600 l-y. While the often neglected NGC 1647 can not compete with the splendid showpieces of Taurus; the Hyades and the Pleiades, it does offer a fine sight in any pair of binoculars. Site : Le Castellard Melan, France ( 44° N ) Date : September 29, 2008 Time : around 21.30UT Binoculars : TS Marine 15x70 FOV: 4.4° Filter : none Mount : Trico Machine Sky Window Seeing : 2/5 Transp. : 4/5 Sky brightness : 21.35 magnitudes per square arc second near zenith (SQM reading). Nelm: 6.4 Sketch Orientation: N up, W right. Digital sketch made with Corel Paint Shop Pro X2, based on a raw pencil sketch. (Note: if the sketch does look too dark on your monitor, try to darken the room.) Edited by rodelaet (10/31/08 06:06 PM) Post Extras:       Mark9473 Post Laureate Reged: 07/21/05 Posts: 3211 Loc: 51°N 4°E Re: Binocular Icon 43 : NGC 1647 in Taurus. [Re: rodelaet]       #2728732 - 10/31/08 06:24 PM Edit   Reply   Quote Quick Reply   Very nice rendition once more, Rony. Any plans yet for a book? (not joking!) -------------------- Mark Leica 8x20; Vixen 8x42; Swift 8.5x44, 10x50 and 20x80; TS 7x50; Orion 15x63; Docter 15x60 WO Megrez II 80 FD + Baader 90° T2 Amici Post Extras:       frank5817 Post Laureate Reged: 06/13/06 Posts: 4089 Loc: Illinois Re: Binocular Icon 43 : NGC 1647 in Taurus. [Re: rodelaet]       #2728746 - 10/31/08 06:31 PM Edit   Reply   Quote Quick Reply   Rony, Very nice sketch of this large open cluster. Your eye is drawn to the brighter stars and then after a short time the fainter tighter members come into view creating a most impressive sight. Beautiful Rony, you are masterful at these binocular sketches. Frank -------------------- my gallery Post Extras:       WadeVC Carpal Tunnel Reged: 12/02/05 Posts: 2831 Loc: Lodi, California, Re: Binocular Icon 43 : NGC 1647 in Taurus. [Re: frank5817]       #2729866 - 11/01/08 02:37 PM Edit   Reply   Quote Quick Reply   Rony, Very nice rendering of this OC in Taurus. Taurus does contain many fine objects, and you captured this one quite well. -------------------- 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: Binocular Icon 43 : NGC 1647 in Taurus. [Re: WadeVC]       #2730097 - 11/01/08 05:27 PM Edit   Reply   Quote Quick Reply   Mark, Frank and Wade, Thanks for the positive comments! Mark, who knows, maybe one day, if I find the time and the publisher .... -------------------- 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: Binocular Icon 43 : NGC 1647 in Taurus. [Re: rodelaet]       #2736725 - 11/05/08 05:06 PM Edit   Reply   Quote Quick Reply   Note : The title of this post should be : Binocular Icon 44. Sorry for that. -------------------- Rony My Astronomical Sketches My Binocular Sketches Callibrate your Monitor with this little strip. Post Extras:       CarlosEH Post Laureate Reged: 01/19/05 Posts: 4141 Loc: Pembroke Pines, Broward County... Re: Binocular Icon 43 : NGC 1647 in Taurus. [Re: rodelaet]       #2747516 - 11/12/08 04:15 AM Edit   Reply   Quote Quick Reply   Rony, An excellent observation of this interesting open cluster in Taurus. This is a nice open cluster among other fine targets in the region. I think that you should title your book "Belgian Skies." I would certainly buy it! Carlos -------------------- Post Extras:       rodelaet Post Laureate Reged: 04/28/06 Posts: 3063 Loc: 50°56' N - 4°58' E (Belgium) Re: Binocular Icon 43 : NGC 1647 in Taurus. [Re: CarlosEH]       #2748295 - 11/12/08 03:31 PM Edit   Reply   Quote Quick Reply   Carlos, 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 0 registered and 5 anonymous users are browsing this forum. 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