Re: 12P interesting inner coma developing Nick James (17 Nov 2023 09:24 UTC)
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Re: [BAA Comets] Re: 12P interesting inner coma developing
Nick James
(18 Nov 2023 03:00 UTC)
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RE: [BAA Comets] Re: 12P interesting inner coma developing
Erik Bryssinck
(18 Nov 2023 08:41 UTC)
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Re: [BAA Comets] Re: 12P interesting inner coma developing
Nick James
(18 Nov 2023 09:10 UTC)
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Re: [BAA Comets] Re: 12P interesting inner coma developing
Douglas Heggie
(18 Nov 2023 09:41 UTC)
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Re: [BAA Comets] Re: 12P interesting inner coma developing
Nick James
(18 Nov 2023 10:15 UTC)
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RE: [BAA Comets] Re: 12P interesting inner coma developing
Erik Bryssinck
(18 Nov 2023 10:17 UTC)
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Re: [BAA Comets] Re: 12P interesting inner coma developing
Helen Usher
(18 Nov 2023 12:32 UTC)
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Re: [BAA Comets] Re: 12P interesting inner coma developing
Nick James
(18 Nov 2023 14:23 UTC)
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12P astrometry
Nick James
(20 Nov 2023 23:12 UTC)
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Re: [BAA Comets] 12P astrometry
Maik Meyer
(21 Nov 2023 07:08 UTC)
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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 >