M51 Whirlpool (Brent)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4277 · IC 4278 · M 51 · NGC 5194 · NGC 5195 · Whirlpool Galaxy

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M51 Whirlpool

Revision title: Revised L HaRGB processing

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M51 Whirlpool

Revision title: Revised L HaRGB processing

Finally getting into the swing of my SCT at f/10 and LHaRGB processing.
On the processing side - the Generalized Hyperbolic Stretch Script is a game changer. No masked stretches or much multiscale processing and got these results. The other game changer is the NoiseExterminator AI - I think it is better than topaz and can be applied in the linear phase of editing.

The Whirlpool Galaxy, also known as Messier 51a, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. The bright region to the right is another galaxy (NGC 5195) which is interacting with the Whirlpool Galaxy. This was the first galaxy identified to have a spiral structure (in 1854!). The red spots are regions of hydrogen gas nebula in the galaxy, dark regions are dust that absorb the light emitted from the other stars.

The seeing wasn't great and my tracking was less than ideal, RMS ~ 0.9 arc seconds (in bin 2 mode my imaging resolution was 0.64 arcsec/pixel)

Original
Final
C

C

Title: Revised L HaRGB processing

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Northeast Imagers
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers
Imaged with N.I.N.A.
IOptron CEM

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Status	Advanced success
Started	...
Astrometry.net job	6001962
PixInsight job	J68NK8ZDWLOBVDRIPRKRGFKCM40802W4
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h29m50s.315
RA (top/left)	13h29m06s.349
RA (top/right)	13h29m06s.100
RA (bottom/right)	13h30m33s.964
RA (bottom/left)	13h30m34s.862

Dec (center)	+47°13′08″.63
Dec (top/left)	+47°23′38″.61
Dec (top/right)	+47°02′44″.29
Dec (bottom/right)	+47°02′39″.43
Dec (bottom/left)	+47°23′33″.94

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M51 Whirlpool

Revision title: Revised L HaRGB processing

M51 Whirlpool

Revision title: Revised L HaRGB processing

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M51 Whirlpool

Revision title: Revised L HaRGB processing

M51 Whirlpool

Revision title: Revised L HaRGB processing

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Description

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