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Comet C2017 K2 (PanSTARRS)

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My first proper try at a colour comet image, and what a trial!

Stacked for the background stars, then pulled the stars out with StarXTerminator. Then ran CometAlignment on all of the subs, and integrated the RG & B comet files with some aggressive rejection to clear up most of the start trails.
Cleaned up the mono subs backgrounds. Combined into a colour image, then XTerminated some noise and sorted the colour balance
Curves adjustments to taste then layered the stars back in

Not 100% happy, as it still showing some diagonal artefacts from the stars but it's getting there. Hoping for a few more stabs at it 🤞

APM 107/700 + asi1600mm. 20 x 2min each in RG&B. Processed in PixInsight then Photoshop


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