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NGC 2392
The Eskimo
Nebula
NGC 2932, the Eskimo Nebula in Gemini, also sometimes referred to as the Clown Face
Nebula.  It was first observed by John Herschel in the 1820s. The distance to NGC 2392 is
estimated to be approximately 3,000 light years.  


February 19, 2010
Camera: SBIG STL6303E
Filters:  AstroDon LRGB
Camera control software:  CCDSoft
Guiding/adaptive optics: AO-L [for some of the exposures]
Camera temperature:  -20C
Image Acquisition Software:  None
Telescope:  RCOS 16 Carbon Tube, Aries optics, F9 with Field Flattener
Telescope control software:  RCOS TCC, TheSky6
Mount:  Paramount ME (MKS 4000)
Subexposures:
Luminance:  46 x 1 minute, unbinned [nebula detail best 18, mild deconvolution applied]
RGB:  22 x 1 minute binned 2x2
Conditions:  Average seeing, some haze and sky brightness from 5 day old setting moon.
Tracking issues with mount caused the loss of all of the data taken the prior night when
seeing conditions were excellent.
Processing: CCDStack and Photoshop CS4.
Click above or here for
weather and seeing
conditions during
imaging session.
Click above or here for larger image.
What appears to be the Star
Ship Enterprise sneaks
through on one red
subexposure