C/2020R4 ATLAS is morning 17th March Peter Carson (17 Mar 2021 17:46 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March Nick James (17 Mar 2021 23:11 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March jjgonzalez jjgonzalez (18 Mar 2021 11:56 UTC)
RE: [BAA Comets] C/2020R4 ATLAS is morning 17th March Peter Carson (18 Mar 2021 19:19 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March Thomas Lehmann (18 Mar 2021 21:58 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March jjgonzalez jjgonzalez (19 Mar 2021 19:32 UTC)
RE: [BAA Comets] C/2020R4 ATLAS is morning 17th March Jonathan Shanklin - UKRI BAS (19 Mar 2021 20:15 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March Charles S Morris (20 Mar 2021 00:25 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March jjgonzalez jjgonzalez (20 Mar 2021 07:03 UTC)
Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March Nick James (19 Apr 2021 21:13 UTC)

Re: [BAA Comets] C/2020R4 ATLAS is morning 17th March Nick James 17 Mar 2021 23:11 UTC

Peter,

Thanks for the image obtained under difficult circumstances.

Martin Mobberley got 10.7 on March 9.78 and visual estimates on COBS are
all around 10.0 now with one bright outlier. It probably won't get much
brighter through March and April. At least it will become easier for us
to observe from the UK over the next few weeks.

Nick.

On 17/03/2021 17:46, Peter Carson wrote:
> Hi All,
>
> I managed to grab a rather blurry image of C/2020R4 ATLAS from my remote
> observatory at Fregenal de la Sierra, Spain this morning. It was only 14 degrees
> altitude, just above the observatory walls and minutes before the start of
> astronomical twilight.
>
> Comphot gives it a visual equivalent mag of 10.07 in a 141 arcsec rad aperture.
> It’s also showing a short vague dust tail. See my image here
> http://www.astromania.co.uk/2020R4_20210317_0456_PCarson.jpg
>
> It’s blossomed since one of my earlier images in October last year when it was
> only mag 18. See http://www .astromania.co.uk/2020R4_20201014_2137_PCarson.jpg
> <http://www.astromania.co.uk/2020R4_20201014_2137_PCarson.jpg>
>
>   From southern England it’s currently rising about 03.15UT and at an altitude of
> around 7 degrees by the start of astronomical twilight and improving in altitude
> rapidly.
>
> Peter
>
> Peter Carson Z10
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
>
> To unsubscribe from this list please go to
> http://www.simplelists.com/confirm.php?u=Aj4vCBHI6JSRpYRB2DWvMTYlWL2vuAnC
>