05-11-2007, 01:46 AM
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Registered User
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Join Date: Oct 2006
Location: Walcha , NSW
Posts: 1,652
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17P/ Holmes @ f/6.3
Imaged tonight using the 8" Celestron SCT @ f/6.3
Canon 400D @ ISO 1600, 75 sec exp!
Image has not been processed at all!
I took drift timings visually, and averaged over 8 timings, the coma measured 20 arc minutes in diameter, easily seen from dark skies!!
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