Messier 31 (Mark Sansom)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32 And · The star ν And

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Messier 31

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Messier 31

The Andromeda galaxy is 2.5 million light years from Earth and is approximately 30% larger than our own Milky Way. It is heading our way and is expected reach us in about 4 billion years. You can also make out a companion galaxy, Messier 110. Similarly, our own Milky Way has two satellite galaxies: the Magellanic Clouds. This image was captured over two nights as Andromeda reaches a maximum elevation of only 10 degrees above the horizon and that makes capturing an image more time- limited. Taken from Little Desert National Park, Nhill, Victoria, Australia.

DSLR and mirrorless astrophotography
Camera Lens Astrophotography
Low-Cost Astrophotography
Astronomical Society of Victoria (ASV)
Sky-Watcher EQM-35 Pro
Australian Astrophotographers
Southern Hemisphere Astro
DSLR/Mirrorless Imagers from the World

Galaxies

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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
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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
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Star trails
Northern lights
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	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
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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	Basic success
Started	...
Astrometry.net job	8731992
PixInsight job	n/a
PixInsight queue size	n/a
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Messier 31

Messier 31

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Messier 31

Messier 31

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