[BAA Comets] Press reports on C/2019 Y4

[Nick James]

David,

Well, so it begins...

The Times, as always, is really up with the latest news. It is clear 
that the activity of this comet changed quite suddenly around mid-March 
when it was at r=1.8au. Prior to that the magnitude fitted H0=1, n=13. 
It is now more like H0=6, n=3.5 so a peak perihelion mag of zero to 2.

The attached plot shows all observations from COBS and some magnitude 
law fits. I think we should still have a nice comet but it probably 
won't be the "comet of a generation".

Nick.


On 31/03/2020 09:01, David Swan wrote:
> The Times, Tue 31 March 2020.
> 
> 'Comet of a generation set to light up the night sky'
> 'It is pushing towards a level that by the end of April could look really, really stunning [we'll see]'
> 'The timing might raise eyebrows for those [i.e. total cranks] that believe the theory that historical comets may have contaminated the Earth's atmosphere and triggered devastating terrestrial plagues such as the Black Death'
> 
> 
> 
> _______________________________________________
> Comets-disc mailing list
> Comets-disc at lists.britastro.org
> http://lists.britastro.org/mailman/listinfo/comets-disc
> 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: c2019y4.png
Type: image/png
Size: 17769 bytes
Desc: not available
URL: <http://lists.britastro.org/pipermail/comets-disc/attachments/20200331/7bfdbefe/attachment.png>