M13, Hercules Globular Cluster
- 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.