M31 Andromeda Galaxy HaLRGB (Massimo Marchini)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · HD3765 · HD3969 · HD4143 · HD4174 · HD4322 · HD4501 · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224

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M31 Andromeda Galaxy HaLRGB

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M31 Andromeda Galaxy HaLRGB

The Andromeda Galaxy (Messier 31 or NGC 224), located in the Constellation of Andromeda is the largest Galaxy in the Local Group which also includes the Milky Way and Triangle Galaxy (M 33 or NGC 598), as well as about 50 other minor galaxies, many of them satellites of the main ones.
M31 is about 779,000 + 180 parsecs (2.54 + 0.6 million light-years) from the earth.
The Andromeda Galaxy is a spiral galaxy, very similar to the Milky Way. On its arms, as on the other hand in our galaxy, there are visible reddish and dark regions containing ionized gases that gradually "focus" to give birth to new stars. M31 is estimated to contain 1000 billion stars and have a diameter of 220,000 light-years. Around M31 orbits M32 (or NGC 221), a dwarf elliptical galaxy about 2.9 million light-years from Earth, whose outer stars have been visibly torn apart by the gravitational pull of the bulky neighbor.
With a magnitude of +3.4 and an apparent size of 190'x60' M31 is the farthest object visible to the naked eye from Earth, with sufficiently dark skies.
M32 has a magnitude of +8 and an apparent size of 7'x5.8'.

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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
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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
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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
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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	6827365
PixInsight job	XNW1BL5GSUXAAWGGGO16EOUGUMUWO4U7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m50s.65
RA (top/left)	00h47m06s.65
RA (top/right)	00h48m35s.58
RA (bottom/right)	00h38m22s.14
RA (bottom/left)	00h37m20s.80

Dec (center)	+41°17′32″.2
Dec (top/left)	+39°44′09″.5
Dec (top/right)	+42°40′59″.9
Dec (bottom/right)	+42°50′10″.6
Dec (bottom/left)	+39°53′03″.3

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M31 Andromeda Galaxy HaLRGB

M31 Andromeda Galaxy HaLRGB

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Image Index:

Contribution Index (beta):

M31 Andromeda Galaxy HaLRGB

M31 Andromeda Galaxy HaLRGB

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Description

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