[BAA Comets] C/2017 T2 PANSTARRS

[Mike Collins]

Hi Nick !
I tried for C/2017 T2 on morning of 3rd Aug from 01:47 till 02:15 but could not see anything.
There's obviously an optimum time to observe each morning (too early at low alt, too late in twilight) and I will try again tonight.
Cheers
Mike

> On 04 August 2019 at 09:28 Nick James <ndj at nickdjames.com> wrote:
> 
> 
> This comet was discovered in 2017 September and it has just emerged from 
> solar conjunction. It will be well placed from the norther latitudes 
> right through to its perihelion next May. There are some details here:
> 
> https://www.britastro.org/node/18553
> 
> and a chart here:
> 
> https://www.britastro.org/sites/default/files/2017t2.pdf
> 
> At present the comet is a morning object moving slowly through Taurus. 
> Current magnitude estimates on COBS range from 8.7 to 14.3 although the 
> brighter estimates appear to be outliers and would imply that the 
> comet's absolute magnitude is huge at its current distance (r=3.7au). 
> The estimates are here:
> 
> https://cobs.si/analysis2?plot_type=0&end_date=2019/08/04%2000:00&col=comet_id&fit_curve=1&obs_type=0&id=1703&start_date=2017/11/20%2000:00
> 
> Since the comet is so well placed for us over the next 8 months I 
> encourage members to observe it at every opportunity. In particular 
> total magnitude estimates, either visual or electronic, would be very 
> welcome over the next couple of months to help tie down the lightcurve. 
> This should be a good opportunity to use our Comphot software to make 
> estimates through the apparition and compare them with estimates made 
> using other methods. Help on using Comphot and download details are here:
> 
> https://www.britastro.org/node/11124
> 
> Contact me if you have any questions.
> 
> Nick.
> 
> 
> 
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