M 109 (NGC 3992) Galaxy in Ursa Major
Located at: RA 11 hours 57 minutes 36 seconds, Dec +53 degrees 22 minutes 29 seconds
Size: 7.6' x 4.6'; Magnitude: 10.6 blue; Class: SB(rs)bc
North is up
West to the right
| Telescope: |
8" f5 Newtonian reflector |
| Camera: |
ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56 |
| Image: |
Lumicon Red filter, 780 minutes (78 x 10 minute subs), 03/9/10/11/2011; seeing 2.5-3.5 FWHM per CCDStack |
| Processing: |
CCDStack 2.19.4070.268047, Photoshop 7.0 |
| Location: |
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s) |
| Notes: |
This image is a re-shoot from a 04/24/25/2007 red-filtered 230 minute exposure ... unfortunately, had similar hazy conditions, though not as much moon. From the NGC / IC Project: Contemporary Visual Observation(s) for NGC 3992 NGC 3992 = M109 = U06937 = MCG +09-20-044 = CGCG 269-023 = PGC 37617 11 57 35.9 +53 22 29 V = 9.8; Size 7.6x4.7; SB = 13.6; PA = 68d 17.5": bright, large, elongated 5:3 SW-NE, at least 6.0'x3.5', broadly concentrated halo, large faint halo. A mag 13 star is superimposed on the halo 50" NNW of center. A mag 13 star is at the NE edge of the halo 3.4' from center. Located 5.1' NE of mag 9.3 SAO 28199. Forms a pair with U06923 15' SSW. 13": fairly bright, large, elongated SW-NE, bright core, diffuse halo. A star is superimposed NW of the core. - by Steve Gottlieb |