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NGC 1893 in H-alpha
Imaged with my NP101 refractor at f/5.4 and H-alpha filter. The half
moon was only 20 degrees away so the H-a filter served as both light pollution filter and emission nebula narrow band filter. Processed in ImagesPlus using Rank-Order filter to reduce reflection artifacts arising from reflections off of the H-alpha filter. Note that the "trailing" is in fact the remains of my reflection artifacts. http://home.att.net/~dpersyk/new.htm I welcome comments from everyone. Thanks for looking. Clear skies, Dennis Persyk Igloo Observatory Home Page http://dpersyk.home.att.net Hampshire, IL |
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