Subject: SH2-112 Ha Nebula in Cygnus A composite of 9, 20 Minute Sub Exposures Filter, Astro-Don 6nm Ha Camera: SBIG ST8-XME Processing: Maxim and Photoshop Telescope: AP 105 EDF With Field Flattener Astro-Physics AP-400 GTO Mount Roadrunner Observatory, September 15 2005 |
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