Friday, May 19, 2017

Comet Johnson

As promised, here is Comet Johnson from my imaging session on Monday, May 15th.  My light box is still not operating properly so I didn't take any flats to correct for the vignetting and other gradients. That is the reason for the slight ring-like halo around the image. And since I didn't have flats I couldn't stretch the image as much as I would have liked, but the result is not all that bad.
Comet C/2015 V2 Johnson - May 15, 2017
EdgeHD11 w/Hyperstar f/2
50x120sec Subs -20C QHY10

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