Celestial hemisphere:  Southern  ·  Constellation: Virgo (Vir)  ·  Contains:  Solar system body or event
Comet C/2023 A3 (Tsuchinshan-ATLAS), Jim Lindelien

Comet C/2023 A3 (Tsuchinshan-ATLAS)

Comet C/2023 A3 (Tsuchinshan-ATLAS), Jim Lindelien

Comet C/2023 A3 (Tsuchinshan-ATLAS)

Equipment

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Acquisition details

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Description

Over about twenty minutes during dusk I let the mount track while NINA looped through exposures and I fiddled with gains and exposure times. This was the best overall composition and image quality while the clouds were also well situated.

I attached a Baader UFC filter drawer adapter to the front of the Rokinon 135mm lens to accommodate the square Lum filter. The clear aperture of the adapter and filter works out to about f/2.4.

A mask was applied along with BXT to deconvolve the edges of the foreground tree profiles and the fine darker wisps of the clouds, without affecting the comet.

Imaged 12-Oct-24 18:51:46 local time (13-Oct-24 4:51:46 UTC).
Cropped and downscaled to UHD format.

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Calibration frames from libraries; afternoon skyflats.

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