Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours (Rowland Archer)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 3185 · NGC 3187 · NGC 3189 · NGC 3190 · NGC 3193

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Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours

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Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours

In addition to the R, G and B frames used to produce this image, I also took Ha and L frames, but they added nothing to the final result so I stuck with RGB.

I went through a couple of passes of post-processing and did the final one a bit differently than my typical workflow.

Calibrated with Siril and gess.
PI: WBPP, RGB channel combine, MLT Noise Reduction, HistogramTransformation, TGVDenoise with galaxies masked.

Stuff I then did differently:
Used GAME and created Luminance mask on the three galaxies that have some color.
With the GAME Luminance mask applied (stars masked), used ACDNR to soften galaxies and Curves to increase color saturation of the galaxies only.
Used Starnet to create a star mask.
With the star mask applied, used Curves to reduce brightness of stars, which also shrank them, and then used Curves to increase color saturation of stars.
With the GAME Luminance mask applied, used HDMRT with Small Scale 5 to bring out some detail.

Original
Final
B

Imaged with Voyager
ZWO ASI1600MM/QHY163M
Suburban Astrophotography
Images from the EdgeHD Series

All Images
Galaxies

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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	5476048
PixInsight job	WYJEGVEWS661FZBQ5JENJKLJEOAS3TR9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h18m01s.466
RA (top/left)	10h17m33s.236
RA (top/right)	10h17m28s.994
RA (bottom/right)	10h18m29s.707
RA (bottom/left)	10h18m34s.420

Dec (center)	+21°47′38″.90
Dec (top/left)	+21°56′57″.71
Dec (top/right)	+21°39′06″.77
Dec (bottom/right)	+21°38′19″.68
Dec (bottom/left)	+21°56′10″.60

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Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours

Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours

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Image Index:

Contribution Index (beta):

Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours

Hickson 44 - NGC 3185, NGC 3187, NGC 3189 , NGC 3193 - ASI1600MM - RGB - EdgeHD 925 - CEM60 - Voyager - 22.5 Hours

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Acquisition details

Description

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Sky plot

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