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Old 02-10-2019, 07:28 PM
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gregbradley is online now
Join Date: Feb 2006
Location: Sydney
Posts: 16,074
I've edited the image from Ian's observations.

I've done some Photoshop devilry where the Trifid now has the body of a Honders 12 inch and the head of a CDK17!

So more detail in the centre areas and a bit more dynamic range.

Same original links:

It pays to archive earlier data for adding in later on. Its a multi year approach to getting longer exposures!

This one is now around 15 hours.

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