[BAA Comets] C/2014 Q2 ion tail development yesterday

[Tony Angel]

Very interesting. I am still only part way through processing my five hours 
of images from last night. I will see if I can process them all this evening 
and do a 10x30sec stack for each hour.

Tony.

--------------------------------------------------
From: "Nick James" <ndj at nickdjames.com>
Sent: Sunday, January 11, 2015 8:37 PM
To: "BAA Comets discussion list" <comets-disc at britastro.org>
Subject: [BAA Comets] C/2014 Q2 ion tail development yesterday

> The tail of this comet changes dramatically from day-to-day and 
> hour-to-hour. I've rescaled three images from yesterday taken by myself, 
> Ian Sharp and Martin Mobberley to show this. You can see the result here:
>
> http://www.nickdjames.com/Comets/2015/2014q2_tail_comparison_20150110.jpg
>
> Can I take this opporunity to ask imagers to include field-of-view/scale 
> and orientation info on their images. Without this very basic information 
> it is difficult or impossible to compare images taken by different 
> systems. It amazes me how many of the top imagers don't do this and leave 
> us to guess. You know who you are...
>
> Nick.
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