Messier 2 Globula Cluster - Adam Lundie - Eatons Hill Observatory

Messier 2 Globula Cluster

Messier 2 Globula Cluster thumbnail
Messier 2 Globula Cluster
55,000 light years away, Messier 2 (M2) is one of the largest known globular clusters.


  • 15x 25s red
  • 19x 300s red
  • 12x 45s green
  • 17x 300s green
  • 12x 45s blue
  • 17x 300s blue

Total integration 4 hours 25 minutes.


  • Celestron 11" EdgeHD
  • Celestron EdgeHD 0.7x focal reducer
  • Skywatcher EQ8 Pro mount
  • QSI 683-ws8 Camera @ -15°C
  • Astronomik luminance, deep sky RGB filters
  • Starlight Xpress Lodestar X2 Autoguider
  • Starlight Xpress Active Optics
  • Innovations Foresight On Axis Guider
  • Starlight Instruments Focus Boss II


  • Imaged on a single night, full moon, orange zone in Brisbane, Australia. (Bortle 7)


  • Planning & camera alignment with Aladin 10
  • Captured with TheSkyX Professional
  • Guiding with PHD2
  • FocusLock live focusing
  • PixInsight: Calibrate, align, stack, crop, HDR combination, dynamic background extraction, color calibration, reduce noise, RGB combination, background neutralization, histogram stretch, HDM multiscale transform, curves.