Hi Nick,

first of all, congrats to you and Jean-Francois for catching this early rise
of an outburst. It's very interesting to follow this discussion - thanks to
all contributors!

I have had a chance to image 29P yesterday eavening before clouds too over
the sky. In total I imaged for 26 minutes using my 11" RASA at 1.26" per
pixel (2020-11-23, UT 20:45). The same data has been processed in two
different way to enhance contrast, see attached image.

At this low resolution (about 4") I cannot get much detail in the inner
outburst coma. But I'd like to draw your attention to the huge outer coma,
extending at least 4 arcmin away from the nucleus. Its asymmetric shape
does follow the inner coma to some degree so it might be related
to the current outburst and not be a leftover of some previous one.
Is it expected to have some material ejected at a much higher velocity
than what you derive from the size of inner coma?
Or is the comet sitting within a longer living cloud of dust?

Clear skies,
Thomas

> Am Mon, 23 Nov 2020 22:22:51 +0000
> schrieb Nick James <ndj@nickdjames.com>:
>
> Here's an image from tonight showing the coma expansion since yesterday.
> Conditions were not as good as yesterday, both seeing and sky brightness
> hence the rather noisy image.
>
> Nick.
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