[BAA Comets] C/2012 X1 outburst

[DENIS BUCZYNSKI]

Nick , I have uploaded both your images onto the Gallery and sent out emails to Comet mailing lists.
Denis
Exciting time for comet observers.. I imaged C/2012 S1, it is brightening slowly. 




>________________________________
> From: Nick James <ndj at nickdjames.com>
>To: BAA Comets discussion list <comets-disc at britastro.org> 
>Sent: Saturday, 26 October 2013, 7:19
>Subject: [BAA Comets] C/2012 X1 outburst
> 
>
>Morning all,
>
>My image from this morning is here:
>
>http://www.nickdjames.com/Comets/2013/2012x1_20131026_0500_ndj.jpg
>
>The coma diameter measured on the same basis has increased from 203 to 264 arcsec in 2d. At the comet's distance of 2.95au this corresponds to an increase in projected diameter of around 65,000 km/day.
>
>A comparison of the diameters is here:
>
>http://www.nickdjames.com/Comets/2013/2012x1_comparison_ndj.jpg
>
>It is remarkable how similar the coma looks in terms of it's internal structure. I'd be interested in an explanation of what we are seeing.
>
>Nick.
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