[BAA Comets] C/2012 X1 outburst

[Andrew Robertson]

Superb images Denis and Nick. The amount of detail is amazing. As you both
know I'm a visual observer but I can really see the value of imaging a
transient, changing object such as this unlike yet another image of M51.
There is so much accurate scientific information.

I plan on fitting a servo cat to my 24" dob, maybe.... :-)

Andrew

-----Original Message-----
From: comets-disc-bounces at britastro.org
[mailto:comets-disc-bounces at britastro.org] On Behalf Of DENIS BUCZYNSKI
Sent: 26 October 2013 07:26
To: BAA Comets discussion list
Subject: Re: [BAA Comets] C/2012 X1 outburst

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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>
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