NGC6543 (RGB-HOO) (Georg N. Nyman)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: HD164963 · IC 4677 · NGC 6552

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NGC6543 (RGB-HOO)

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NGC6543 (RGB-HOO)

Very well kwown and often imaged - a me-too for this year. The time with my Lacerta Newton plus ASI183M with RGB-HO filters from Astronomik (deep-color RGB). In total 6 nights spent with acquisition - most of it with Ha and O3. All channels processed separately and later on then combined - with PixelMath. Finished in Photoshop using StarXterminator and StarShrink.

In total a result of 480 subs (w/o centerpart) - RGB 60 each at 60" and Ha and O3 150each at 180" during 6 nights between July 3 and 19.

The ultrabright center was acquired with the same setup, 150 subs á 15" each for RGB, processed separately to get at least some structure into the center. I did not want to take a different setup with a Barlow and manipulate the processed outcome into the image, I thought this way might be perhaps more authentic....however this is a matter of taste and preference.

The final image was cropped according to liking.

Any comments are highly apprciated...

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Status	Advanced success
Started	...
Astrometry.net job	6028620
PixInsight job	JE6VZX92B0KWFPFIGHSO08HVYQM6DH9T
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h58m32s.174
RA (top/left)	18h00m43s.639
RA (top/right)	17h56m22s.971
RA (bottom/right)	17h56m22s.409
RA (bottom/left)	18h00m39s.574

Dec (center)	+66°38′21″.42
Dec (top/left)	+66°47′51″.70
Dec (top/right)	+66°48′09″.57
Dec (bottom/right)	+66°28′44″.57
Dec (bottom/left)	+66°28′26″.31

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NGC6543 (RGB-HOO)

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