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Old 24-11-2008, 08:18 AM
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AlexN
Widefield wuss

AlexN is offline
 
Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
theres two main ways Ha images are given color.. Combining Ha data with RGB. This will usually add a lot of contrast and structure to the shape of a nebula, and strengthen the nebula against the sky background. The other is combining Ha data with OIII (and SII) to create narrowband false color images.
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