NGC 7640 |
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A galaxy in Andromeda. 10 x 1.5 arc-min. Magnitude 10.9.
The shot above is an LRGB composite from seventeen 5 minute luminance frames, three 5 minute frames each for the RGB's, for a total of 1 hour and 50 minutes. The result was color balanced to 1.15 : 1.00 : 2.05 which takes extinction into account. The luminance frames were unbinned, and the color frames were binned 2x2. 12" LX200, AO7, ST-8E @ f/6.3. Taken August 16, 2001 at the Oregon Star Party.