"glen youman" wrote in message
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NGC 6905 - Blue Flash Nebula
Delphinus
Penryn, California
July 2006.August 2010
M 250 ST-10XME RGB 5 minute subs (2006)
M 250 @ f9.3, ST-10XME Lum 10 minute subs (2010)

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).

Image up-sampled 1.25x.

Very nice. I am planning on doing some imagining this weekend, so that one
might have just made my list. Thanks for sharing.

George