Markarian's chain (Basudeb Chakrabarti)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: M 58 · M 84 · M 86 · M 87 · M 88 · M 89 · M 90 · M 91 · NGC 4374 · NGC 4388 · NGC 4406 · NGC 4438 · NGC 4459 · NGC 4473 · NGC 4486 · NGC 4501 · NGC 4548 · NGC 4552 · NGC 4568 · NGC 4569 · NGC 4579 · Virgo Galaxy

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Markarian's chain

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Markarian's chain

The Markarian's Chain, a deep telescopic field of view, is a string of galaxies located in the centre of the Virgo Galaxy Cluster. Following the chain up and to the left, it is anchored in the frame at left center by the conspicuous lenticular galaxies M84 (top) and M86. The two interacting galaxies NGC 4438 and NGC 4435, sometimes referred to as Markarian's Eyes, are located close to the centre. The Virgo Cluster, the closest galaxy cluster, has a centre believed to be 50 million light-years away. Its gravitational pull on our own Local Group of Galaxies is rather noticeable, with up to roughly 2,000 member galaxies. At least seven of Markarian's Chain's galaxies appear to move coherently within the Virgo Cluster, and more might appear to be part of the chain by chance.

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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
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
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Star trails
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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.

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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.
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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.

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Markarian's chain

Markarian's chain

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