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C/2017 T2 (PanSTARRS) and its inner coma

Image

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About this observation
Observer
Nick James
Time of observation
23/05/2020 - 23:11
Object
C/2017 T2
Observing location
Chelmsford, UK
Equipment
C11 HD + FLI6303
Exposure
6x60s
Tags

This comet certainly shows interesting structure in the inner coma.

The inset is the result of subtracting a modelled rotationally symmetric coma of the form A * exp(B * log(r)) from the original image. The centre of symmetry is the photocentre which is indicated by the red pixel. The comet has looked like this for a while with a sunward pointing broad fan that curves around and back down the tail and a very strong tailward jet.

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