Galaxy NGC891. A stack of 5 - 42 second exposures with my Celestron NexStar 11 GPS, Meade DSI with a 1000 Oaks LP-1 broadband nebula filter and a HyperStar lens ( 500mm F1.9 ). Since I didn't do a dark field subtraction before stacking, you can see the stuck pixels wandering across the sky. August 2005.

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Copyright © 2013 by Bennet Blake
Last fiddeled with 02-Sep-13