The Andromeda Galaxy (M31) - HaLRGB (MikeTheTechGeek)

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

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The Andromeda Galaxy (M31) - HaLRGB

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The Andromeda Galaxy (M31) - HaLRGB

The Andromeda Galaxy (M31), is a closet barred spiral galaxy to the Milky Way at approximately 2.5 million light-years from Earth. The Andromeda Galaxy is the Milky Way’s younger larger distant cousin. At 220,000 light-years across with approximately one trillion stars, it is double the size and has between 3-10x the number of stars the Milky Way is estimated to have.

This galaxy is visible to the naked eye in the late spring through fall from a dark site; although, it looks like a big fuzzy dot. When it was originally discovered, it was thought to be a nebula, not a galaxy. If you could see the whole Andromeda Galaxy with the naked eye, its length would be almost 8 full moons across the night sky.

Fun fact, Andromeda is on a speedy collision course with our Milky Way galaxy (at 245,000 mph), but don't worry it will take another 4-5 billion years for the two galaxies to merge. So you have plenty of time to move out of the neighborhood. 😁 Due to the amount of space in Space, it is speculated that we would not even feel the effects of the two galaxies merging. M32 is the small galaxy to the upper left of M31, while M110 is the larger galaxy to the lower right. Both of these galaxies have been interfered with by M31.

This image of M31 consisted of just over 1050 individual images taken with Luminance, Red, Green, Blue, and Ha filters. The shortest exposure of 10 seconds to the longest exposure of 5 minutes. The total integration time for this image is just over 28 hours.

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	10009781
PixInsight job	NO7Y8K30MGX2K25INBXFB6B331WHLZT6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m45s.96
RA (top/left)	00h45m54s.66
RA (top/right)	00h46m52s.84
RA (bottom/right)	00h39m31s.95
RA (bottom/left)	00h38m46s.53

Dec (center)	+41°16′01″.7
Dec (top/left)	+40°14′56″.4
Dec (top/right)	+42°09′41″.4
Dec (bottom/right)	+42°16′42″.6
Dec (bottom/left)	+40°21′45″.1

Image Index:

Contribution Index (beta):

The Andromeda Galaxy (M31) - HaLRGB

The Andromeda Galaxy (M31) - HaLRGB

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Image Index:

Contribution Index (beta):

The Andromeda Galaxy (M31) - HaLRGB

The Andromeda Galaxy (M31) - HaLRGB

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