M20 Trifid Nebula
M20 Trifid Nebula. A single 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 ). August 2005.
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Copyright © 2013 by Bennet Blake
Last fiddeled with 02-Sep-13