• Constellation: Hercules
  • Right Ascension: 16h 41m 41.24s
  • Declination: +36°27’35.5”
  • Distance: 22,200 ly

One of the best known northern hemisphere globular clusters containing around 300,000 stars. Globular clusters are are old objects and M13 is estimated to be around 11.5 billion years old based on the amount of heavy metal contents in its stars. Imaged just before a full Moon. 


  • Telescope: GSO RC10
  • Camera: ZWO A071 Color