Another night, another comet (C/2021 A4)

Ross Wilkinson

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Feb 27, 2021, 6:49:05 AM2/27/21

to Bolton Astronomical Society

The second clear(-ish) night in a row was only marred by bright moonlight and occasional high cloud.

So I took the opportunity to look for C/2021 A4 (ATLAS), which is a new comet (discovered only last month):

That's a stack of 72x 1-min with my C8 at f/3.5 (the gaps in the star-trails are where I've omitted frames marred by cloud, aircraft/satellite trails or poor tracking).

Ross Wilkinson

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Feb 27, 2021, 10:41:17 AM2/27/21

to Bolton Astronomical Society

Correction, it's C/2021 A4 NEOWISE (there are so many of these automatic searches!)

Ross Wilkinson

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Feb 27, 2021, 10:51:19 AM2/27/21

to Bolton Astronomical Society

I've now made a time-lapse animation of my data from last night, which I've shared on Google Photos

The MPEG4 compression hasn't been kind to the background noise!

(Note that this is mirrored - East is on the right in the movie, but on the left in my stacked image)

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