NGC 6946 Fireworks Galaxy (JohnAdastra)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Fireworks Galaxy · NGC 6946

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NGC 6946 Fireworks Galaxy

Revision title: NGC 6946 Fireworks Galaxy

Powered byPixInsight

NGC 6946 Fireworks Galaxy

Revision title: NGC 6946 Fireworks Galaxy

The Fireworks Galaxy in Cygnus

While this object has been imaged before with another camera, this attempt was my first use of the new WeightedBatchPreProcessing Version 2.4.5 in PixInsight 1.8.9-1, where separate R, G and B master lights could be automatically created from the original OSC data. Supposedly this route will improve upon red and blue ended color halos which may occur towards the outer frame edges with certain type optical designs like SCTs.

Also, starless processing was performed on the galaxy core and arms after using StarXTerminator. Then processes such as TGVDenoise, LocalHistogramEqualization, UnsharpMask and CurvesTransformation were used to refine details before adding the stars back using PixelMath. However, I should mention that the stars added back were not those generated in the Star Mask output from StarX, but were created by subtracting the starless image from a clone of the primary RGB combination, which retains more of the original RGB star colors than those created by the other route. Thanks to Warren Keller for his tips on using his special PixelMath equations for performing these actions.

Original
Final
B

B

Title: NGC 6946 Fireworks Galaxy

Description: A further revision was added with a light application of NoiseXTerminator to smooth some background graininess.

Uploaded: ...

Light Polluted skies
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LVAAS Astroimaging
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The OSC Club (One Shot Camera)
PixInsight Addicts

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	5966327
PixInsight job	K4265UMU10GFREB4KYN42N9O88T8XE1D
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h34m52s.157
RA (top/left)	20h36m28s.785
RA (top/right)	20h32m22s.828
RA (bottom/right)	20h33m16s.921
RA (bottom/left)	20h37m20s.460

Dec (center)	+60°08′57″.36
Dec (top/left)	+60°24′26″.20
Dec (top/right)	+60°15′13″.62
Dec (bottom/right)	+59°53′24″.33
Dec (bottom/left)	+60°02′29″.98

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NGC 6946 Fireworks Galaxy

Revision title: NGC 6946 Fireworks Galaxy

NGC 6946 Fireworks Galaxy

Revision title: NGC 6946 Fireworks Galaxy

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NGC 6946 Fireworks Galaxy

Revision title: NGC 6946 Fireworks Galaxy

NGC 6946 Fireworks Galaxy

Revision title: NGC 6946 Fireworks Galaxy

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