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tim.anderson
02-01-2025, 12:02 PM
Compiled from fifty 180-second exposures with a Skywatcher Esprit 100mm refractor, an ASI2600MCPro Duo and a ZWO AM5 mount.

AstroViking
03-01-2025, 09:25 AM
Hi Tim,

Looking good!

I imaged Gum-15 a while ago and found that it really benefits from lots of integration time. It's not a super-bright object and can disappear into the nebulosity around it, which makes the processing tricky.

May I suggest that you try removing the stars (via starnet++ or similar tool) and working on the stars/no-stars layers separately? I found that it made a huge difference in my final images.

Cheers,
V.

tim.anderson
03-01-2025, 03:36 PM
I'll give it a go

Tim

Max Vondel
04-01-2025, 02:55 PM
Nice image, thank you.

tim.anderson
04-01-2025, 03:35 PM
Thanks Max - the background is a bit mucky, but there is a lot of nebulosity in that region, which tends to reduce the contrast across the field of view.

Tim