The Andromeda Galaxy M31 (Kevan Noble)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 32 And · 35 And · 35 nu. And · Andromeda Galaxy · HD3396 · HD3431 · HD3447 · HD3741 · HD3765 · HD3827 · HD3969 · HD4143 · HD4174 · HD4322 · HD4501 · HD4669 · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224 · The star 32 And · The star ν And

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The Andromeda Galaxy M31

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The Andromeda Galaxy M31

The Andromeda Galaxy (M31) is one of the few visible to the unaided eye, appearing as a milky blur. It is located about 2,480,000 light-years from Earth; its diameter is approximately 200,000 light-years; and it shares various characteristics with the Milky Way system. It was mentioned as early as 965 CE, in the Book of the Fixed Stars by the Islamic astronomer al-Ṣūfī, and rediscovered in 1612, shortly after the invention of the telescope, by the German astronomer Simon Marius, who said it resembled the light of a candle seen through a horn. For centuries astronomers regarded the Andromeda Galaxy as a component of the Milky Way Galaxy—i.e., as a so-called spiral nebula much like other glowing masses of gas within the local galactic system (hence the misnomer Andromeda Nebula). Only in the 1920s did the American astronomer Edwin Powell Hubble determine conclusively that the Andromeda was in fact a separate galaxy beyond the Milky Way.

Since I started Astrophotography August 2020, this is my 4th capture of Andromeda. Like so many of us it was my very first capture, and whilst blown away at what I had achieved, each year I feel the need to revisit and improve on the previous attempts of this glorious galaxy. Let’s see if I can do better next time.

Taken 22-23 October, 6-7 November, 10-11 November 2023

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	8983871
PixInsight job	41RPW3CSVZPJYUVN0RKKH077O5ECTTT5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m59s.30
RA (top/left)	00h49m33s.53
RA (top/right)	00h50m36s.70
RA (bottom/right)	00h35m59s.99
RA (bottom/left)	00h35m47s.52

Dec (center)	+41°13′46″.9
Dec (top/left)	+39°14′50″.5
Dec (top/right)	+43°06′17″.5
Dec (bottom/right)	+43°11′19″.3
Dec (bottom/left)	+39°19′33″.5

Image Index:

Contribution Index (beta):

The Andromeda Galaxy M31

The Andromeda Galaxy M31

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The Andromeda Galaxy M31

The Andromeda Galaxy M31

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