NGC 891 is an edge on spiral galaxy in Andromeda. It
has a visual magnitude 10.1 and is at a distance of 10 million
light years. The relative dimensions of this galaxy are thought
to be typical for a spiral galaxy. Note the dust lane runing
along the equator and how thin the disk is.
The secondary mirror started to dew up about half way through
the exposure.
Date
Luminance: 29th August 2006
Telescope
250mm F4.8 Newtonian Reflector with coma corrector