M3
Globular Cluster
Right Ascension: 13h 42m 28s
Declination: +28° 21' 17"
Distance: 30,600 light years
Visual Brightness: 6.4 mag
Image information-
Date taken-April 18, 2005
Telescope/Focal length/Camera/Temperature- NexStar11 GPS @ f/6.8,
ST-8XE NABG @ -20C, autoguided with CCDSoft Ver. 5.0
Integrations- 10 x 30
seconds unguided binned 2x2
Processing- Flats and darks in CCDsoft Ver 5.0, aligned and
combined in SigmaBeta11, DDP in Images Plus 2.0