Comet Processing Help

Software Siril
#1

I had a window of clear weather to get some data on comet C/2022 E3

The attached work in progress is a stack of 120 files each of 1 minute exposure with a OSC camera

I used Siril to align on the comet. I also have a stack of the stars without the comet.

I’ll combine these later.

How can I get rid of the star trails left over in the comet image?

c2022_E3_
c2022_E3_1676×1266 447 KB

Thanks

#2

Having a high number of subs, then playing with the high sigma rejection is the best we can do yet.

#3

I never thought to do this before on my comet situations; I always just composited and cranked exposure down. This might be image-changing for some of my old exposures, so thanks for responding.