M33, The Triangulum Galaxy in LHRGB (David Payne)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: AL Tri · AR Tri · AW Tri · BC Tri · BD Tri · HD9269 · HD9483 · HD9686 · 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 · PGC 1876404 · PGC 1883033 · PGC 1883861 · PGC 1886457 · PGC 1886693 · PGC 1889040 · PGC 1916717 · PGC 1928235 · And 27 more.

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M33, The Triangulum Galaxy in LHRGB

Revision title: Darkened Background

Powered byPixInsight

M33, The Triangulum Galaxy in LHRGB

Revision title: Darkened Background

Triangulum Galaxy
Askar 151phq; AP Mach2 GTO; ASI6200MM, - Baader 6.5nm NB CMOS opt. filters
H: (65 x 450s Bin 1, Gain 200); R,G,B: (60,60,56 x 180s, Bin 1, Gain 100); L: (101x150s, Bin 1, Gain 100)
Total integration time = 21.1 hrs (Sep 20,21; Oct 25,27-31; & Nov 22,23 2023)

The Triangulum Galaxy at 2.73 Mly distant, is only marginally farther away than the Andromeda Galaxy and is the third largest member of our local group of galaxies. It is also the farthest galaxy which we can resolve individual stars (other than super-nova explosions) with a back yard telescope. The ones we can resolve are likely massive stars or even star clusters. The galaxy itself is considered the farthest object that can be resolved with the naked eye.

From the abundant star formation currently (well, at least over 2 million years ago) taking place is evident in the abundant H emission signal (red/magenta), coming from the pinwheel shaped spiral arms. Many of these star forming regions take interesting shapes, forming loops and blobs – their glow being powered by the young stars they are creating. Such complex star forming areas often arise within a galaxy when it is being tidally disturbed by other galaxies. In the case of the Triangulum Galaxy, it is being pulled by the nearby Andromeda Galaxy (750,000 ly away) with which it will likely merge and may currently be a satellite galaxy.

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Title: Version 2

Description: Adjusted Histogram with GHS for log normal character.

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C

Title: Darkened Background

Description: needed after monitor calibration

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Status	Advanced success
Started	...
Astrometry.net job	9689902
PixInsight job	WRHJZUN1YOG4D1JEJ57YRCAFXVUAIPL9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m59s.999
RA (top/left)	01h36m57s.655
RA (top/right)	01h37m03s.336
RA (bottom/right)	01h30m59s.407
RA (bottom/left)	01h31m00s.987

Dec (center)	+30°37′20″.61
Dec (top/left)	+29°38′55″.95
Dec (top/right)	+31°35′16″.18
Dec (bottom/right)	+31°35′32″.40
Dec (bottom/left)	+29°39′13″.99

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M33, The Triangulum Galaxy in LHRGB

Revision title: Darkened Background

M33, The Triangulum Galaxy in LHRGB

Revision title: Darkened Background

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M33, The Triangulum Galaxy in LHRGB

Revision title: Darkened Background

M33, The Triangulum Galaxy in LHRGB

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