Skull and Crossbones Nebula - Adam Lundie - Eatons Hill Observatory

Skull and Crossbones Nebula

Skull and Crossbones Nebula thumbnail
Skull and Crossbones Nebula
The Skull & Crossbones Nebula is an active star-forming region approximately 20,000 light years away.

This image is a false colour representation of hydrogen-alpha, sulfur-II and oxygen-III emission-line clouds, mapped to red, green, and blue respectively. An emission line will appear in a spectrum if the source emits specific wavelengths of radiation. This emission occurs when an atom, element or molecule in an excited state returns to a configuration of lower energy.


  • 45x 600s Sulfur-II
  • 57x 600s Hydrogen-alpha
  • 51x 600s Oxygen-III

Total integration 27 hours.


  • Skywatcher Black Diamond 120ED
  • Skywatcher EQ8 Pro mount
  • QSI 683-ws8 Camera @ -15°C
  • Astronomik 6nm SHO filters
  • Starlight Xpress Lodestar X2 Autoguider
  • Innovations Foresight On Axis Guider
  • Starlight Instruments Focus Boss II


  • Orange zone in Brisbane, Australia. (Bortle 7)
  • Exposed for 7 nights between 11-Jan-2019 and 27-Jan-2019


  • Planning & camera alignment with Aladin 10
  • Captured with TheSkyX Professional
  • Guiding with PHD2
  • FocusLock live focusing
  • PixInsight: calibrate, align, stack, dynamic background extraction, deconvolution, denoise, curves, histogram, pixel match channel combination, background neutralization, crop.