PK 171-25.1  (image up-sampled 1.5x)
Taurus
Penryn, California
January 2004/October 2006
FS-128G  (ag, ST-4)
ST-10XME LRGB 15 minute subs (2004)
ST-2000XM  Lum 15 minute subs (2006)

A 38 arc-second mag 14 planetary nebula.  Note the two bright knots of gas at the outer edge at the 5 and 11 o'clock positions.