NGC 6888 - Crescent Nebula -
image down-sampled 0.33x - click on above for full scale image
Cygnus
Penryn, California
July 2008
M 250 @ f9.3 (ag, ST-4)
ST-10XME LRGB 10 minute subs
NGC 6888 was formed when an active 7th
magnitude Wolf-Rayet star shed it outer shell. Wolf-Rayet stars shed their
shells on a frequent (astronomical time scale) basis.
