Thanks David. I hope more people will start using comphot.

I got magnitude 5.1 last night using comphot with a detected coma
diameter of 35 arcmin. I'm using a small refractor (72mm, f/4.8) and the
green channel of a colour camera (ASI294MC) and the comphot estimates
seem to match visual very well.

The lightcurve of this comet does seem to have been very well behaved.
The ion tail is now swinging around rapidly as our viewing geometry changes.

I'm putting together a preliminary report for the April JBAA so please
continue submitting your observations.

Nick.

On 29/01/2023 22:35, David Swan wrote:
> Thanks for all your work on the software, Nick. The ion tail of C/2022 E3 had three clear streamers this evening - if streamer is the correct term. David