Andrew,

Unlucky!

I've just measured an image of 12P taken using the Alnitak telescope in
Spain and get 14.7 in a 6.6 arcsec aperture on Nov 13.80.

Does anyone have any images of 12P obtained between Nov 13.80 and Nov 14.75?

Nick.

On 15/11/2023 07:04, Andrew Robertson - andrew at fast-mail.net (via
baa-comet list) wrote:
> We were unlucky then Nick. At the Haw Wood star party this weekend just gone
> it wasn't visible at all in a 16" and extremely faint in Owen's 22". We were
> unfortunate in being between outbursts. The skies were very damp which
> didn't help with transparency.
>
> Andrew
>
> -----Original Message-----
> From: baa-comet@simplelists.com [mailto:baa-comet@simplelists.com] On Behalf
> Of Nick James
> Sent: 15 November 2023 06:52
> To: baa-comet@simplelists.com
> Subject: [BAA Comets] Possible 12P outburst on or before Nov 14.75
>
> Morning all,
>
> I've just measured my 12P images from last night using Astrometrica and it
> is around 2 magnitudes brighter than three days ago measured in a 9 arcsec
> aperture.
>
> On Nov 11.77 using this aperture I had mag 14.5. Last night in 20 minutes
> around Nov 14.75 the comet rose from 13.6 to 12.5.
>
> Can anyone confirm?
>
> Nick.
>
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