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Old 10-09-2018, 05:11 PM
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RickS (Rick)
PI cult recruiter

RickS is offline
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Originally Posted by Camelopardalis View Post
And then slide in the Ha too
Based on Kevin's M27 image I reckon he'll use an Oiii filter tilted so that the bandwidth is shifted to H beta
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