RASC - St. John's Centre
Members Photos

Images of
M11, M16, M31 & NGC6603

Photographed by Chris Steverson September 2, 2007
 

M11 "Wild Duck Cluster", in Scutum, backdropped by the Scutum star cloud, photographed from Lady Lake Observatory on September 2, 2007 by Chris Stevenson.  A Celestron Nexstar 80GT f/5 refractor was used, tracked by means of a homemade poncet platform, and a Canon EOS 350D Rebel dSLR camera at ISO1600. All starfields show strong coma at the edges and annoyingly blue-violet fringed bright stars throughout - the 80GT's optics are not the sharpest.  Pic is a Registax3 sum of  two 15-second exposures, curves adjusted in simple photo viewers (Windows Photo Editor, XV under linux)

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M16 "Eagle Nebula", in Serpens Cauda, photographed from Lady Lake Observatory on September 5, 2007 by Chris Stevenson, with a Celestron Nexstar 80GT f/5 refractor, tracked by means of a homemade poncet platform, and a Canon EOS 350D Rebel dSLR camera at ISO1600.   This pic is a single 15-second exposure.

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NGC6603 in M24, in Sagittarius, photographed from Lady Lake Observatory on September 5, 2007 by Chris Stevenson, with a Celestron Nexstar 80GT f/5 refractor, tracked by means of a homemade poncet platform, and a Canon EOS 350D Rebel dSLR camera at ISO1600. M24 is the "Sagittarius starcloud", and NGC 6603 appears as a tight cluster near its centre. Also visible are dark nebulae Barnard
92 and 93 (right of NGC 6603), and others. Four of nine 15s exposures were usably tracked and summed..

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M31 "Andromeda Galaxy", in Andromeda, photographed from Lady Lake Observatory on September 5, 2007 by Chris Stevenson, with a Celectron Nexstar 80GT f/5 refractor, tracked by means of a homemade poncet platform, and a Canon EOS 350D Rebel dSLR camera at ISO1600. M32 can be seen just below it, and M110 above it. A total of 15 of 24 15s exposures were usably tracked and summed..

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