M33 - a northern beauty (Tom Gray)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: HD9483 · IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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M33 - a northern beauty

Revision title: Combined data processed in SIRIL

Powered byPixInsight

M33 - a northern beauty

Revision title: Combined data processed in SIRIL

After the Milky Way and Andromeda galaxies, M33 is the third member of our local group, lying 2.7m LY from earth, and containing around 40 billion stars. In this image, I have combined recent data with those collected in September from my Bortle 2 site in Scotland.

With a total over 6 hours integration, I am starting to see some depth in the galaxy, and have tried to pick out the detailed features - dust lanes, blue star clouds and giant emission nebulae, whilst also preserving some of the structure in the giant swirling arms. With up to 10 min subs, I’m quite pleased considering these are guided exposures on a portable Star Adventurer mount.

This is an object that disappoints visually, with rather low surface brightness, and even photographically does not always give up structure and detail easily. Modern imagers and processing techniques delve into the detail with magnificent results.

Original
B
Final
C

B

Title: Combined with data from Bortle 2

Description: Aug 2022 5x600s (50m) +_48x180s (144m) Bortle 2 Scotland
Jan 2023 33x300s (165m)
Total = 359m_RGB

Uploaded: ...

C

Title: Combined data processed in SIRIL

Description: Processed in SIRIL with background extraction, SNCR, photometric colour calibration, deconvolution, then finished in Nebulosity with star reduction, smoothing and noise reduction (GreyCstoration).

Uploaded: ...

UK Astro-Imaging
Altair Astro 183 M/C Hypercams
Messier Objects

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Status	Advanced success
Started	...
Astrometry.net job	7199601
PixInsight job	NN34H8DMWCTQK985JFWF19TD58DOHDDH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m53s.70
RA (top/left)	01h35m44s.32
RA (top/right)	01h35m28s.20
RA (bottom/right)	01h32m01s.79
RA (bottom/left)	01h32m20s.47

Dec (center)	+30°42′25″.0
Dec (top/left)	+30°11′00″.3
Dec (top/right)	+31°16′19″.1
Dec (bottom/right)	+31°13′44″.5
Dec (bottom/left)	+30°08′29″.7

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M33 - a northern beauty

Revision title: Combined data processed in SIRIL

M33 - a northern beauty

Revision title: Combined data processed in SIRIL

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M33 - a northern beauty

Revision title: Combined data processed in SIRIL

M33 - a northern beauty

Revision title: Combined data processed in SIRIL

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