RE: [BAA Comets] NEOWISE close-up
Andrew Robertson 29 Jul 2020 07:44 UTC
A lot of detail Nick. I have had a visual on it these last two nights but only through binoculars, couldn't get a telescope on it. It's also faded below N/E visibility for me.
Andrew
-----Original Message-----
From: baa-comet@simplelists.com [mailto:baa-comet@simplelists.com] On Behalf Of Nick James
Sent: 28 July 2020 23:59
To: baa-comet@simplelists.com
Subject: Re: [BAA Comets] NEOWISE close-up
I've managed to get around an hour so far on C/2020 F3 (NEOWISE) this evening. I have kept with 10s exposures even though the comet is a lot fainter than when I last imaged it on July 22. My animation is here:
http://www.nickdjames.com/Comets/2020/2020f3_20200728_ndj.gif
This consists of stacks of 20x10s (approx 320s total span including the camera dead time) processed using an r=2, theta=10 deg Larson-Sekanina filter. It shows the anti-clockwise rotation of the spiralling dust quite nicely and complex flows in the tail.
Nick.
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