Wednesday, July 06, 2016

imaged NGC 6781 again (Halifax)

I asked the 'bot BGO to reshoot the planetary nebula NGC 6781 (the images from 25 June were quite bad). No artefacts or weirdness. There's a gradient but I think I can deal with that.

Luminance only, 60 seconds subexposures, 10 stacked shots. FITS Liberator, Paint.NET. North is up; left is east.


Processed the RGB images on July 14.

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