M13, Hercules Globular Cluster

Messier 13

  • Telescope: 8" f/10 refractor.
  • Camera: Canon EOS D60, 6.3 MP digital SLR prosumer camera.
  • 4 stacks of 5 minutes, each 45 seconds apart.
  • Dark subtracted (4 darkframes averaged).
  • Stretched and curved with gamma=2.22.
  • Scaled and after effects with photoshop.

hoi