Berkeley 21 (Lund 199, C 0548+217) Open Cluster in Orion
Located at: RA 05 hours 51 minutes 45 seconds, Dec +21 degrees 48 minutes 42 seconds
Size: 6.0'; Magnitude: 11.1; Class: I 2 m
North is up
West to the right
| Telescope: |
8" f5 Newtonian reflector |
| Camera: |
ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56 |
| Image: |
Lumicon Red filter, 420 minutes (42 x 10 minute subs), 01/26/27/2009; seeing 2.8-3.4 FWHM per CCDStack |
| Processing: |
CCDStack 1.5.1, Photoshop 7.0 |
| Location: |
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s) |