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The Lined Wolf

Comet C/2020 F8 (SWAN) over Sydney

4 May 2020, 12:00 UTC
Comet C/2020 F8 (SWAN) over Sydney
(200 words excerpt, click title or image to see full post)

Comet C/2020 F8 (SWAN), Sydney, May the 4th, 2020, 5:15am
Image combining 10 x 2min exposures using an Optolong L-Pro filter, Skywatcher BD80, focal reducer Orion x0.8, ZWO ASI178MC. Mount Skywatcher AZ-EQ6 Pro mount, camera ZWO ASI120MM for guiding and ASIair for controlling everything.
Individual frames dark subtracted with Siril software, then I did the alignment on the comet manually in Photoshop (that is why stars are moved and blurry, as stacked with median), where I also played with the color/brightness/contrast.
The top image is the resulting color image, the bottom image is the greyscale image increasing the contrast to increase the visibility of the tail and the faintest features.
Full resolution image in my Flickr.
A Twitter thread compiling some extra information about the imaging process in here.
Credit: Ángel R. López-Sánchez (AAO-MQ).

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