Nikon d7100, Nikon 180mm f/2.8 @ f4, iso 1600, 42x90s. Fixed on stars. Comet Johnsons movement from 11:01 PM to 12:04AM was only ~4 pixels; thus there is very little drift detected with the comet. It appears somewhat brighter and greener than a month ago but is still very small (quite a distance from the earth and sun).
One image is with the comet fixed and the other is with the stars fixed.
Temperature was 43F under very good conditions.
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