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)