M4

Globular cluster

Constellation- Scorpius

Right Ascension: 16h 23m 43s

Declination: -26° 32' 45"

Distance: 7200 light years

Visual Brightness: 5.6 mag

Apparent dimension: 26.3 arc minutes

Image information-

Date taken-July 6, 2004

Telescope/Focal length/Camera/Temperature- NexStar11 GPS @ f/6.8, SBIG ST-8XE @ -20C, autoguided with CCDSoft Ver. 5.0

Integrations- 6 x 300 seconds binned 1x1

Processing- Flats and darks in CCDSoft 5.0, combined in Astroart 2.0