How to remove bright ring ?

[SAW]

Hi,

I use Affinity for my final editing for my astro images. How do I remove this annoying bright white ring around the outside of the moon ? FYI this is a stack of 11 images, but I use other software to stack.

[v_kyr]

There are several ways to do that, using the healing tools, or fine black background color brushing over, or making a rounded arc selection and fade the background in via masking etc. - Or maybe more easy use the donut tool, adjust it to a small arc shape (you can also convert to curves for more accurate adjustment) and then color over with the background black. So something like this here ...

[firstdefence]

If you turn off all of the adjustments is the white ring still evident?

1. If not make a mask so as not to include the edge in the adjustments.
2. If it is there make a mask to dial down the brightness with another adjustment layer. 

[carl123]

Use the Flood Select Tool to select all the black (don't worry if you select some of the darker left-hand side of the moon)

Select > Grow / Shrink   (grow by 1.5px)

Select > Feather   (1.5px)

Select > Outline   (Alignment: inside - 2px)

Use "black" paint brush and brush on the white parts you want to cover

You can switch of the selection to make this easier to see   (View > Show Pixel Selection)