NGC 6888 - Crescent Nebula (HOO) (Ruediger)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · LBN 203 · NGC 6888 · Sh2-105

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NGC 6888 - Crescent Nebula (HOO)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Powered byPixInsight

NGC 6888 - Crescent Nebula (HOO)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

This is by far not a master piece of processing and I did not spent much time on it, but it was a comparison to my other Crescent Nebula image taken with the TEC 140 ( https://www.astrobin.com/9wrn39/?nc=user ). I just wanted to compare the performance of both OTAs by using exactly the same setup and exposure timings.

The CDK is really delivering awesome raw data, but still learning how to process it. It sounds irritating, but this data needs different processing compared to the data gathered with the TEC. Of course - otherwise it would be much too easy!

Additionally fighting with some severe firmware issue of the mount. The tracking is not perfect and produces some significant drift. Since I run it unguided, the stars show some eccentricity.

The raw data was taken only with 8 subs of 600s each short after full moon.

Original
Final
B

B

Description: Now it looks much better - I had forgotten to apply SCNR :(

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Status	Advanced success
Started	...
Astrometry.net job	3654884
PixInsight job	E89QZZMF3T3HN0LX24W9J63VSFRUP3Z1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m06s.410
RA (top/left)	20h10m47s.151
RA (top/right)	20h10m42s.164
RA (bottom/right)	20h13m24s.183
RA (bottom/left)	20h13m31s.129

Dec (center)	+38°21′13″.91
Dec (top/left)	+38°45′32″.20
Dec (top/right)	+37°57′39″.80
Dec (bottom/right)	+37°56′55″.54
Dec (bottom/left)	+38°44′46″.31

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NGC 6888 - Crescent Nebula (HOO)

NGC 6888 - Crescent Nebula (HOO)

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Image Index:

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NGC 6888 - Crescent Nebula (HOO)

NGC 6888 - Crescent Nebula (HOO)

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