NGC 2309 (Cr 122) Open Cluster in Monoceros

Located at: RA 06 hours 56 minutes 04 seconds, Dec -07 degrees 10 minutes 30 seconds

Size: 3.0' (5.0'); Magnitude: 10.5; 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, 320 minutes (32 x 10 minute subs), 03/8/10/2009; seeing 2.2-2.7 FWHM per CCDStack

Processing:

CCDStack 1.5.2.1, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)