Great Hercules Cluster





Copyright 2008 Jean-Denis Douvier


Image details
Date: 03/02/2008, Doughton Park
Exposure: 7 x 3 minutes
Telescope: Celestron 9.25 at f/6.3
Mount: Losmandy G-11, guiding (webcam, PHDGuiding, Tak FS60C)
Camera: Canon 20Da at ISO 1600
Object details
Number: M13, NGC 6205
Type: globular cluster
Magnitude: 5.3
Diameter: 21'
Constellation: Hercules