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Cygnus Loop, Jeff Horn
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Cygnus Loop

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Cygnus Loop, Jeff Horn
Powered byPixInsight

Cygnus Loop

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Description

Here is my first go at a mosaic in pixinsight.  This was taken over 4 nights in July in moderate to full moon.  Two panels a top and a bottom.  Each panel was about 7.5hr of narrowband subs.  I first tried to use star alignment and gradient merge mosaic, but the panels were very different due to severity of the moonlight on later runs.  So you could still see a clear joint area.  There were also some artifacts that I didn't like.  I tried this method in both linear and nonlinear with same results.
So I tried it again with Photometric Mosaic (after image solver, mosaic by coordinates and trim mosaic tile on each frame).  This worked great with even join area and no artifacts.  This was processed as OSH.

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Cygnus Loop, Jeff Horn