Medusa Nebula

Rancho Del Sol Observatory · Camino, California

Medusa Nebula by Ken Crawford

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Image Equipment Details

  • Rancho Del Sol Observatory , Camino, Ca
  • RCOS 20" Truss F8.3
  • Paramount ME
  • Apogee Alta U09000
  • SBIG ST402 Guider
  • Astrodon MegaMoag off axis guider
  • Astrodon 2nd Generation 50mm Square Filters

Exposure Details

  • 6 Filter Image
  • Red = 40 minutes
  • Blue = 40 minutes
  • Green = 40 minutes
  • Ha = 540
  • SII = 0
  • OIII = 600

Software Used

  • CCDAP 4
  • MaxDL 5
  • Pinpoint
  • Thesky 6
  • Pempro
  • CCDstack2 / CCDIS
  • Photoshop CS5

About this image

Medusa Nebula (Abell 21) with Ha mapped to Orange and OIII Mapped to Blue

Medusa Natural Color

Click the image to see the Medusa in "Natural" Color