Comet Johnson (C/2015 V2)
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Comet Johnson (C/2015 V2)
Edmonton, Alberta, Canada
Exposure: RGB 13x4min, total 2hr 36min
Processing: SGP, MaximDL, Corel
Imaging: MN190, STF8300M, EQ8
Guiding: VMC110L, TV2xBarlow, LodestarX2
This is Comet Johnson (C/2015 V2) as seen in April 2017.
The comet was visible with almost any telescope as it passed through the inner solar system in the spring of 2017.

This is the first comet image I have ever taken and I am pretty happy with the result. Its not perfect though. The core looks oblong and has a dark band in it. I believe this is a result of "trailing" that occurred because of the long (2hr+) exposure. The trailing occurred because I set the telescope to track the background stars and the comet moved a bit relative to the stars during the exposure period.

Experienced comet imagers typically track the comet itself and let the stars trail instead. This would result in a more normal looking round comet core. But like I said, this is my first comet and I used deep sky imaging techniques. So the stars came out quite nice but the comet trailed instead. Oh well, for a first effort it still looks pretty good though.

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