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Dear Chris et al
I have finally processed some images I took of this comet on Thursday night.
The first file is a stack of 4 x 300 sec exposures through a lum filter.
The second image is just 1 of these images but analised with astrometrica.
It gives a report as
TEL VC200L + CCD
NET USNO-A2.0
CK07W010 V2008 04 03.40318 12 10 19.78 -17 41 52.5 13.5 N 247
The upshot of this is a machine mag of 13.5
This is probably a bit low as I can't sample the entire coma as astrometrica will only let me use a 30 pixel circle to measure the total flux. I can post the fit file if anyone else can analyze it.
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