Amazing Sky by Alan Dyer

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M39 in Cygnus (105mm 5DII).jpg

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M39 open cluster in Cygnus. Taken Oct 30, 2010 with 105mm A&M apo refractor at f/5 with Borg .85x flattener/reducer and Canon 5DMkII at ISO 800 for stack of 5 x 10 minute exposures, Median combined. Used Celestron CGEM mount and NexGuider on William Optics 66mm guidescope. All seemed to work well.
Copyright
© Alan Dyer 2010
Image Size
5500x3600 / 13.2MB
Contained in galleries
Messier Objects, Star Clusters
M39 open cluster in Cygnus. Taken Oct 30, 2010 with 105mm A&M apo refractor at f/5 with Borg .85x flattener/reducer and Canon 5DMkII at ISO 800 for stack of 5 x 10 minute exposures, Median combined. Used Celestron CGEM mount and NexGuider on William Optics 66mm guidescope. All seemed to work well.