[BAA Comets] 174P Echeclus long exposure tonight

[Andrew Robertson]

Hi Peter, your images show it as roughly circular to me but they look fairly consistent in that the Northern half of the coma is a lot stronger than the southern half. I presume that is genuine and not some artefact of processing?

Andrew

-----Original Message-----
From: Comets-disc [mailto:comets-disc-bounces at lists.britastro.org] On Behalf Of Peter Carson
Sent: Thursday, January 4, 2018 10:02 PM
To: BAA Comets discussion list <comets-disc at lists.britastro.org>
Subject: [BAA Comets] 174P Echeclus long exposure tonight

Hi All,
See http://www.astromania.co.uk/174P_20180104_1915_PCarson.jpg for my 48 minute exposure of 174P Echeclus earlier this evening 2017 Jan 4th. It appears to be showing a faint near circular "shell". Is anyone else seeing this?
My other 174P images are here
http://www.astromania.co.uk/comet_174p_echeclus.html

Peter Carson

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