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NGC 6905 - Blue Flash Nebula
Delphinus
Penryn, California
July 2006
M 250 ST-10XME LRGB 5 minutes each

A small (31 arc second) mag. 12 classic planetary nebula.  The central star is a Wolf-Rayet  star and is one of the three hottest known star  (Miskey et. al., 2000).  Note the small wisp of material extending  downward at the 4 o'clock  and another at the 5 o'clock position.