The Pleiades (Jared Willson)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 16 Tau · 17 Tau · 18 Tau · 19 q Tau · 20 Tau · 21 Tau · 22 Tau · 23 Tau · 24 Tau · 25 eta Tau · 26 Tau · 27 Tau · 28 Tau · Alcyone · Asterope · Atlas · Barnard's Merope Nebula · Celaeno · Electra · IC 349 · LBN 770 · LBN 771 · LBN 772 · M 45 · Maia · Maia Nebula · Merope · Merope Nebula · NGC 1432 · NGC 1435 · And 13 more.

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The Pleiades

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The Pleiades

M45, The Pleiades Star Cluster
Normally, when you see an open cluster such as the Pleiades surrounded by a blue reflection nebula you assume that you are looking at extremely young stars that have not yet dispersed the cloud of gas and dust from which they were formed. That is not the case with the Pleiades. Based on fitting the stars in the cluster to HR diagrams, stellar evolution models suggest the Pleiades are somewhere between 75 and 150 million years old, for longer than the dust and gas from their original formation would last. The cluster just happens to be moving through a particular dusty section of the interstellar medium, resulting in the bright reflection nebula. The cluster is thought to contain at least 1,000 stars with a combined mass of roughly 800 suns.

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	5199380
PixInsight job	OOBC4W7EYQ2DXU9WGWE2F4YA6EA3ICIX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h46m51s.56
RA (top/left)	03h42m30s.53
RA (top/right)	03h42m48s.77
RA (bottom/right)	03h51m09s.32
RA (bottom/left)	03h50m57s.88

Dec (center)	+24°08′30″.0
Dec (top/left)	+24°58′06″.3
Dec (top/right)	+23°14′42″.6
Dec (bottom/right)	+23°18′26″.5
Dec (bottom/left)	+25°01′53″.6

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The Pleiades

The Pleiades

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The Pleiades

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