King 7 (Lund 121) Open Cluster in Perseus
Located at: RA 03 hours 59 minutes 10 seconds, Dec +51 degrees 46 minutes 48 seconds
Size: 5.0' (8.0'); Magnitude: --; Class: I 2 r
North is up
West to the right
| Telescope: |
8" f5 Newtonian reflector |
| Camera: |
ST-8XME, self-guided, binned 1x1, temp -15C & -20c, camera control MaxIm DL 4.56 |
| Image: |
Lumicon Red filter, 480 minutes (480 x 10 minute subs), 12/12/13/2010; seeing 2.1-3.2 FWHM per CCDStack |
| Processing: |
CCDStack 2.17.3996.27523, 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 King 7 is 8.0 arc minutes. From the CDS, the little nebulosity to the Southeast (bottom edge) is GN 03.56.2 |