IC 5146 – Cocoon Nebula (HaLRGB)

IC 5146 – Cocoon Nebula

IC 5146, the Cocoon Nebula, is a reflection/emission nebula illuminated by a cluster of 9.5 magnitude stars in the constellation Cygnus. It is located about 4,000 light years from Earth. A dark lane is formed by the dark nebula Barnard 168. The Cocoon Nebula is a stellar nursery undergoing active star formation.

  • Date – 30 October, 3/10 November 2018
  • Location – Backyard
  • Telescope – Meade 8” SCT @ f/6.3 (1320mm focal length)
  • Camera – ASI1600MM-C @ -10C
  • Guiding – Orion Starshoot Autoguider w/50 mm Guidescope
  • Mount – Orion Atlas Pro AZ/EQ-G
  • Pixel Scale – 0.61″/pixel
  • Exposures (Gain 139, Offset 50)
    • Luminance: 233x15s
    • Red: 110x45s
    • Green: 89x45s
    • Blue: 73x45s
    • H-Alpha (Gain 200): 18x300s
    • Total integration: 5.8 hours
  • Processing – PixInsight
 


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