Re: 12P interesting inner coma developing Nick James (17 Nov 2023 09:24 UTC)
RE: [BAA Comets] Re: 12P interesting inner coma developing Erik Bryssinck (18 Nov 2023 08:41 UTC)
Re: [BAA Comets] Re: 12P interesting inner coma developing Douglas Heggie (18 Nov 2023 09:41 UTC)
RE: [BAA Comets] Re: 12P interesting inner coma developing Erik Bryssinck (18 Nov 2023 10:17 UTC)
12P astrometry Nick James (20 Nov 2023 23:12 UTC)
Re: [BAA Comets] 12P astrometry Maik Meyer (21 Nov 2023 07:08 UTC)

Re: 12P interesting inner coma developing Nick James 17 Nov 2023 09:23 UTC
Peter,

Yes, I confirm this. I initially thought that it was some sort of
processing artefact but it is real. Here is my image of the inner coma
taken at 19:19 on Nov 16 using the Alnitak telescope in Spain. This is
around 2 arcmin square.

See also the full image with more details here:

https://britastro.org/observations/observation.php?id=20231116_205120_39e0a2e36927510e

Interesting...

Nick.

On 16/11/2023 20:32, Peter Carson wrote:
> Hi All,
>
> My 12P imaging session this evening shows the comet has developed an
> interesting/odd inner coma. There appears to be a bright photocentre with a
> bright, slightly linear region towards pa 45 deg. There’s a distinct dark
> shallow “v” towards pa 100 deg and a much less obvious dark broader “v” opposite.
>
> My first roughly processed image is attached. It’s taken at 0.61 arcsecs per
> pixel and then enlarged by 200%. It’s a 14 x 60 sec frame stack with a 31.5cm
> reflector. North is up.
>
> Peter
>
> Peter Carson
>
> Essex UK
>
> Remote observatory Extremadura, Spain.
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
>