Abel21 "The Medusa Nebula" in Gemini

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Object Description: A planetary nebula located in Gemini about 1500 light years away. The image is oriented North up.

Telescope: 360mm Ritchey-Chretien
Camera: Canon 40D self-modified w/ Baader UV/IR cut filter
Mount: ParamountME
Filters: none

 

Date Taken: 29JAN2009
Location: Lot4, Arcturus Way, Sacramento Mountains Astronomy Park, Weed, NM
Sky Conditions: transparency 2/5, seeing averaged 2.31 arcseconds for the night.
Image Acquisition: 62x300s, iso800 dithered using CCDCommander and CCDSoft.

Image Processing: ImagesPlus 3.80 used for data reduction, grading, alignment, SigMed combine, initial DDP, ARL deconvolution. PSCS4 used for levels, curves, and color enhancement. GradX for background equalization.


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