Hello Nick

Like almost everyone in the UK and nearby countries I've had nothing but cloud at the times I could observe 12P.   I have however taken the opportunity of the enforced break to acquire a mono camera I can use with my 14inch SCT for comet observation (I admit it was mainly bought with occultation work in mind) - this may enable me to be able to measure things with Astrometrica more easily.

I don't have any Sloan filters though - what would be the recommended best alternative?    I can image with no filter, with a luminance/IR cut or a plain red filter.   Is there a preference?

Kind regards,

Peter

-----Original Message-----
From: baa-comet@simplelists.com [mailto:baa-comet@simplelists.com] On Behalf Of Nick James
Sent: 15 January 2024 06:56
To: baa-comet@simplelists.com
Subject: Re: [BAA Comets] 12P/Pons-Brooks updated lightcurve

The latest lightcurve shows that the near-nucleus magnitude has risen to around 12.6 as the comet approaches the Sun. There is no sign of any significant outburst.

A combination of poor weather and altitude limits and technical problems at remote telescopes means that we have had a few days recently with no observations. If you have any data for those dates please let me know.

Nick.

On 10/01/2024 21:18, Nick James wrote:
> The latest lightcurve of 12P is attached. There have been no
> significant outbursts since the one on December 14 although recent
> measurements from three telescopes show that the comet has brightened
> to around 12.9 in a
> 9 arcsec aperture.
>
> We are coming up to 30 days since the last outburst so please observe
> this comet whenever you can and submit your photometry to the section.
> The comet is now getting lower in the evening sky but it is becoming
> more observable in the morning sky from UK latitudes.

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