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Comet 78P/Gehrels

 

 2012 January 16

Canon EOS 5D MkII ISO6400 44x32s
254mm Newtonian f=1200mm f/4.8
HEQ5 equatorial mount, driven but not guided
2012 Jan 16 19:37:38-20:07:06 UT
From Rookhope 54.8N 2.1W 330m asl. Rural, almost no light pollution (3 Bortles)

 2011 September 29

This periodic comet was too faint to see in the telescope. This was perhaps because, being in Pisces directly under the square of Pegasus. it was only at an altitude of about 20° from my position. I used some star-hopping software of my own to find it from its predicted coordinates. Processing the stack of photos revealed it (just):

Canon EOS 5D MkII ISO6400 33x30s 254mm Newtonian f/4.8 (f=1200mm)
HEQ5 mount, driven but not guided 2011 Sep 29 00:00:41-00:20:11 UT
From Rookhope 54.8N 2.1W 330m asl. Rural, almost no light pollution (3 Bortles)

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