King 20 (Lund 1039, OCL 262) Open Cluster in Cassiopeia

Located at: RA 23 hours 33 minutes 16 seconds, Dec +58 degrees 28 minutes 52 seconds

Size: 4.0' (5.0') Magnitude: -- Class: II 2 p

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 450 minutes (45 x 10 minute subs), 09/30 & 10/1/2011; seeing 2.2-2.9 FWHM per CCDStack

Processing:

CCDStack 2.24.4110.20701, Photoshop CS 5.1

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 5.0 arc minutes