M13 - old test data (Simon)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Great Cluster in Hercules · HD150293 · HD150679 · HD150998 · Hercules globular cluster · IC 4614 · IC 4615 · IC 4616 · IC 4617 · M 13 · NGC 6196 · NGC 6197 · NGC 6205 · NGC 6207

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M13 - old test data

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M13 - old test data

I had some old 'test data' for the scope in Spain from last May [2018], but no flats for the colour filters at all. As that is so, I decided some time ago, not to bother with processing this image, and the next set of images, for that very reason. However, I had a change of mind and thought I would give it a try, using the luminance flat frames for all filters! It was not straight forward at all, with all sorts of vignetting and bad gradients, plus other oddities, but even so, this, and the next set of images, are my results from processing over the last few days. I am pleased to have been able to pull out some of the detail of the internal structure of the globular, although I am not that happy with the star colour...

This one was 32 luminance subs at 300s each and 60 subs at 300s of RGB. Integration time: just over 6.5 hours...

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Status	Advanced success
Started	...
Astrometry.net job	2663247
PixInsight job	CHE2XRY9P9N6JBTQPB86B7LCE66U0A3H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m42s.98
RA (top/left)	16h37m24s.24
RA (top/right)	16h46m03s.41
RA (bottom/right)	16h46m06s.35
RA (bottom/left)	16h37m19s.40

Dec (center)	+36°25′58″.2
Dec (top/left)	+35°49′00″.2
Dec (top/right)	+35°49′20″.9
Dec (bottom/right)	+37°02′21″.1
Dec (bottom/left)	+37°02′03″.3

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M13 - old test data

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M13 - old test data

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