M52

[Astro Grandad]

Hi all anyone seen this before, I am using a WO GT81 2020 edition with correct flattener from FLO, ZWO 294C (I know the pixels are a little large), 240S subs X 40, darks X10, flats X25 and 20X bias frames running at -10 temp, Gain at 120 using Sharpcap, stacked in DSS part processed in Affinity Photo.

Edited December 8, 2020 by Astro Grandad

[wimvb]

This can be pixel rejection in stacking. Have you looked at a single sub, fresh from the camera?

Edited December 18, 2020 by wimvb

[Astro Grandad]

Hi sorry for the late reply, I have sorted it it was a issue in deep sky stacker in the cosmetics tab, I turned down the pixel size and ratio.

regards

Neil