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Old 04-02-2017, 06:15 PM
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RickS (Rick)
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Join Date: Apr 2010
Location: Brisbane
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Quote:
Originally Posted by barx1963 View Post
Stars have a magenta halo, which apparently is common with combining narrowband images. There is a script that can be used in Pixinsight to fix it but struggling to figure it out at the moment.
Hi Malcolm,

The magenta halos result because the Sii and Oiii data normally needs a lot more stretching to match the Ha. This bloats the stars in red and blue and the combination is magenta.

Did you figure out how to use ColorMask to reduce the halos?

Cheers,
Rick.
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