M13

"Hercules Cluster"

Constellation- Hercules

Right Ascension: 16h 41m 53"

Declination: +36° 27' 35"

Distance: 22,800 light years

Visual Brightness: 5.8 mag

Apparent Dimension: 16.6 arc minutes

Image information-

Date taken- June 3, 2011

Telescope/Focal length/Camera/Temperature- C11 OTA @ f/6.8, ST-8XE NABG @ -20C, autoguided with internal guide chip

Integrations-  L = 4 x 600 seconds binned 1x1

Processing- Flats and darks in CCDSoft, aligned, combined, and processed  in Astroart 5 and Photoshop CS5