Back ] Up ] Next ]                             image down-sampled 0.5x - Click on image for full size

Penryn, California
August 2009
FCL-90 II (ag, ST-4)
ST-10XME LRGB 10 minute subs

A HII emission nebula.  This is a ring nebula around WR 157, in the Basel 3 (Markarian 50) cluster that is in turn part of Cas OB2., see .
Note the interesting tight cluster of stars at upper right.