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Veil Nebula fail - where did I go wrong?

imakebeer
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TiffsAndAstro

TiffsAndAstro

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31 minutes ago, imakebeer said:

Hey @alacant quick question - I've been busy playing with more manual processing in Siril using the settings you showed me in your video..... In the stacking tab under Pixel Rejection -> Sigma Clipping, what actually is Sigma and why are the low/high values important? The default is 3 for both but I saw you set low=5 and high=2...

(I swear I saw an old post of yours on this the other day but damned if I can find it now)

I've searched the help and Googled more generally but can't find an answer, except it's maybe something to do with standard deviation so I suppose ultimately something to do with statistics....🤔

I don't know answer but I use these settings :)

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imakebeer
imakebeer

Righto, I've been having fun with Siril, manually processing the entire stack (about 80 lights) using @alacant 's settings in the video. This included using the plot to throw away the dodgiest light f

imakebeer
imakebeer

No news on this since it's been nothing but cloudy here for ages, and not looking like it's about to change 😒 However, I took some time to dig out the raw data from my initial stint learning DSO

TiffsAndAstro
TiffsAndAstro

There was high cloud for me those dates. 

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