The Medusa Nebula in Gemini


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.