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Comet Holmes 2007
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Comet Holmes 2007     02-16-2013 17:50:38          Category: [Astronomy]  

Shot back in 2007 using an EOS 40D and a Canon EF 500/4.5L. Comet Holmes atained naked eye visibility in October of 2007 and reached a maximum apparent size of about 13 arc minutes, almost half the angular size of the moon. This was shot just using a normal tripod, not a tracking mount. This meant that the maximum allowable exposure was around 1.5 seconds. Longer exposures resulted in stars trailing due to the earth's rotation.

Canon EOS 40D , 1.6 sec , f/4.5 , 500 mm , ISO= 3200

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