M33 The Triangulum Galaxy (Dale A Chamberlain)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: 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 The Triangulum Galaxy

Link: https://chamberlainobservatory.com/index.php/welcome-to-the-chamberlain-observatory-website/photo-gallery/m33-the-triangulum-galaxy/

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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M33 The Triangulum Galaxy

Link: https://chamberlainobservatory.com/index.php/welcome-to-the-chamberlain-observatory-website/photo-gallery/m33-the-triangulum-galaxy/

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

The Triangulum Galaxy is a spiral galaxy 2.73 million light-years from Earth in the constellation Triangulum. It is cataloged as Messier 33 or NGC 598. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Milky Way and the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye.

The galaxy is the smallest spiral galaxy in the Local Group and it is believed to be a satellite of the Andromeda Galaxy due to their interactions, velocities, and proximity to one another in the night sky. The galaxy gets its name from the constellation Triangulum, where it can be spotted.

The Triangulum Galaxy is sometimes informally referred to as the "Pinwheel Galaxy" by some amateur astronomy references, in some computerized telescope software, and in some public outreach websites.

With a diameter of about 60,000 light-years, the Triangulum galaxy is the third-largest member of the Local Group of galaxies, roughly 60% the size of the Milky Way. It may be a gravitationally bound companion of the Andromeda Galaxy. Triangulum may be home to 40 billion stars, compared to 400 billion for the Milky Way, and 1 trillion stars for Andromeda Galaxy.

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Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	3410007
PixInsight job	4M4WTXSL7QYAT5GBIZ44WO2C8JLP70TZ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h33m47s.31
RA (top/left)	01h34m56s.10
RA (top/right)	01h28m42s.17
RA (bottom/right)	01h32m37s.18
RA (bottom/left)	01h38m52s.53

Dec (center)	+30°40′55″.8
Dec (top/left)	+29°36′59″.9
Dec (top/right)	+30°41′47″.7
Dec (bottom/right)	+31°44′45″.5
Dec (bottom/left)	+30°39′19″.3

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M33 The Triangulum Galaxy

M33 The Triangulum Galaxy

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M33 The Triangulum Galaxy

M33 The Triangulum Galaxy

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