NGC 457 (Lund 43, Cr 12) Open Cluster in Cassiopeia
Located at: RA 01 hours 19 minutes 33 seconds, Dec +58 degrees 17 minutes 24 seconds
Size: 13' (20'); Magnitude: 6.4; Class: II 3 r
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, 280 minutes (28 x 10 minute subs), 10/12/2008; seeing 3.2-4.3 FWHM per CCDStack |
| Processing: |
CCDStack 1.3.7, Photoshop 7.0 |
| Location: |
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s) |
| Notes: |
According to "Star Clusters", by Brent Archinal
and Steven Hynes, the size of this open cluster is 20 arc
minutes. From the NGC / IC Project: Contemporary Visual Observation(s) for NGC 457 NGC 0457 = Cr 12 = Mel 7 = OCL-321 01 19 33 +58 17.5 V = 6.4; Size 13 17.5" (9/19/87): ~150 stars in a beautiful cluster including mag 5 Phi 1 and mag 7 Phi 2 Cassiopeiae. Includes many mag 14-15 stars. 8" (1/1/84): ~75 stars in cluster. 6: striking bird-shape with two prominent "arms". One of my favorite objects in this scope at 36x. - by Steve Gottlieb |