Nick,

Interesting to see what the 2.0-m Faulkes Telescope(s) can show at present.

That appears to be a new fragment close to C, whilst a further one should appear downstream of the main nucleus in the next week or two if the recent brightening has liberated a large enough piece.

Richard

-----Original Message-----
From: baa-comet@simplelists.com <baa-comet@simplelists.com> On Behalf Of Nick James
Sent: 23 November 2025 16:05
To: baa-comet@simplelists.com
Subject: Re: [BAA Comets] Fragmentation of C/2025 K1 (ATLAS)

Courtesy of Helen Usher and the BAA/Comet Chasers group I have processed some data obtained earlier today from the 2.0-m f/5.2 RC Foulkes Telescope North (F65). This has an image scale of 0.27"/pix. This image is resampled by a factor of 2 and is 2.3 arcmin square. It is a stack of 3x10s images taken at half the comet's offset rate.

It shows a separate, faint apparent fragment just ahead of C and an elongated bright area behind A. Component A has brightened significantly over the past few days.

All that is left of component B is its tail.

Nick.
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