Haven't seen this one posted for awhile so here is my attempt. The Soap Bubble Nebula in Cygnus in Ha. That is one faint object. No wonder it wasn't discovered until 2008.
Celestron 11 at f/6.5 (Celestron reducer in an Optec Agos adapter), ST-8XME, Astrodon 6nm Ha filter, 10x15 min subs. Processed in CCDStack v2.
Chris N
Cedar, MN
Celestron 11 at f/6.5 (Celestron reducer in an Optec Agos adapter), ST-8XME, Astrodon 6nm Ha filter, 10x15 min subs. Processed in CCDStack v2.
Chris N
Cedar, MN
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