Astrophotography by David Gares
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m13col.jpg
M13 Hercules Cluster (Click to enlarge)

Object Details:
 
Object Type:  Globular star cluster
Constellation:  Hercules
Distance:  25,100 light-years
Diameter:  145 light-years
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M13 Hercules Globular Cluster
 
M13, the Hercules cluster, is the most impressive globular cluster readily visible in the U.S.  It is believed to contain hundreds of thousands (perhaps millions) of stars bound together by their own gravitational pull.  This photograph captures the cluster better than an eyepiece view at home, but the view through a telescope under a dark sky is more breathtaking than this.  Stumbling onto this sharply defined object after a night of chasing faint fuzzy galaxies is an unforgettable experience.
 

Image Details:
Film Roll
 
Date:  April 10, 2004
Site:  Harahan, LA
Exposure:  CCD, 10 x 2 min., f/3.3 reducer
Filters:  Orion Skyglow (Broadband LPR)
Processing:  MSB Astroart 3.0
Telescope:  10" f/10 Meade LX200 SCT
Mount:  Milburn Wedge
CCD:  Starlight Express MX7C (Color)
Autoguider:  S.T.A.R. 2000