NGC 2392
Planetary
Nebula
Planetary
Nebula
| NGC 2932, a planetary 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. |
