NGC 1931 (Cr 68) / Sh2-237 (LBN 810) Open Cluster / Bright Nebula in Auriga
Located at: RA 05 hours 21 minutes 36 seconds, Dec +34 degrees 14 minutes 42 seconds
Size: 6' / 7'; Magnitude: 10.1 / --; Class: I 3 p n / Emission (Sharpless) 3 2 3
North is up
West to the right
| Telescope: |
8" f5 Newtonian reflector |
| Camera: |
ST-8XME self-guided, binned 1x1, temp -30c, camera control MaxIm DL 4.51 |
| Image: |
No filter, 115 minutes (23 x 5 minutes) 01/20/2006 |
| Processing: |
MaxIm DL 4.53, CCDSharp, Photoshop 7.0 |
| Location: |
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s) |
| Notes: |
Needs to be re-shot for time/filtration ... From the NGC / IC Project: Contemporary Visual Observation(s) for NGC 1931NGC 1931 = Sh 2-237 = LBN 810 = Cr 68 05 31 26 +34 14.7 V = 11.3; Size 3x3 17.5": five stars (three brighter mag 11.5/12/3/13 stars) located within a bright, small nebulosity of high surface brightness. A sixth very faint star is just outside the nebula. Dims with OIII filter so must have a predominant reflection component. The three brighter stars are separated by 8" and 10" from the mag 11.5 star. 13": five stars involved including three close fairly bright stars. A fourth very faint star to the west, fifth very faint star NE and sixth extremely faint star west. This is a bright, high surface brightness nebulosity. 8": compact, striking nebulosity involving several stars. - by Steve Gottlieb |