M 3 (NGC 5272) Globular Cluster in Canes Venatici

Located at: RA 13 hours 42 minutes 11 seconds, Dec +28 degrees 22 minutes 32 seconds

Size: 18'; Magnitude: 6.3; Class: 6

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.53

Image:

 Red (Hoya 25A) filter, 200 minutes (20 x 10 minute subs), 05/28/2006; seeing 2.4-3.3 FWHM per CCDStack

Processing:

 CCDStack 1.3.7, Photoshop 7.0

Location:

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

Notes:

This image replaces one of my first sequences (unfiltered, 30 minutes total exposure, 5 min subs) taken last August (2005)