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The Medusa Nebula in Gemini
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Copyright 2008 Hap Griffin
Thought originally to be a supernova remnant, the Medusa Nebula, otherwise known as PK 205, is actually an old planetary nebula.
The Medusa Nebula lies
at a distance of 1000 light years.
Date/Location:
November 25, 2007 Griffin/Hunter II Observatory Bethune, SC
Instrument: Canon 40D (modified IR filtering) Digital SLR through
10" Newtonian w/MPCC
Focal Ratio: f/ 4.7
Guiding: SBIG ST-402 through Takahashi FS-102
Conditions: Clear and cold
Weather: 25 F
Exposure: 210 minutes total (70 x 3 minutes @ ISO 1600)
Filters: Baader UV/IR block internal to camera
Processing: Focused and captured, RAW to TIFF conversion,
flat and dark frame calibration, auto alignment, Digital Development, resizing and JPEG conversion in ImagesPlus.
Final tweaking in Photoshop
CS2.