M13 - Hercules Globular Cluster

  
 
 
Home
New Images
Galleries
    Auroras
    Chrono Film
    Chrono DSLR
    Clusters
    Galaxies
    Nebulas
    Misc.
    Pool
Equipment
Links
Credits
 
   
  • RA: 16:41.7
  • Dec: +36:28
  • Magnitude: 5.8
  • Distance: 25,100 ly
  • Size:  16.6 arc min
  • Constellation:  Hercules
  • Scope: 8" SCT at f/10
  • Autoguider:  ST-4 in faint mode
  • Sky conditions:  Excellent transparency and good seeing
  • Camera: Hutech modified Canon 300D
  • Exposure: 15 x 5 minutes
  • Date:  September 2, 2005
Comments:  This was the first light with the Canon Digital Rebel (300D) camera.  Temperature was about 60F. The shots were processed in Images Plus, dark frame applied,  and finished in Photoshop. M13, the great globular cluster in Hercules, is one of the most prominent and best known globulars in the Northern hemisphere.  It contains several hundred thousand stars.  Toward its center the stars are about 500 times more concentrated than in the solar neighborhood.