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Captured by
Douglas Rollain

M20 Trifid Nebula in LRGBHa

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Gamma Cygni Area image

Gamma Cygni Area


Acquisition Details
  • Number of frames:
  • FPS:
  • Focal length:
  • CMI/CMII/CMIII:
Description

Gamma Cygni Nebula and Crescent in Hydrogen Alpha Nikon 180 mm f/2.8 lens at f/4 Mandel Widefield Adapter and SBIG ST-2000XM AstroDon H-alpha filter: 10 exposures of 20 minutes each ARGO Observatory August 2005