M 44 The Beehive Cluster (Roland Schliessus)

Celestial hemisphere: Northern · Constellation: Cancer (Cnc) · Contains: 38 Cnc · 39 Cnc · 40 Cnc · 41 eps Cnc · 42 Cnc · Beehive · Beehive cluster · IC 2388 · IC 2390 · M 44 · NGC 2624 · NGC 2625 · NGC 2632 · NGC 2637 · NGC 2643 · NGC 2647 · Praesepe · Praesepe Cluster

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M 44 The Beehive Cluster

Link: http://www.roland-schliessus-astro.de/

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M 44 The Beehive Cluster

Link: http://www.roland-schliessus-astro.de/

The Beehive Cluster (also known as Praesepe (Latin for "manger"), M44, NGC 2632, or Cr 189), is an open cluster in the constellation Cancer. One of the nearest open clusters to Earth, it contains a larger population of stars than other nearby bright open clusters. Under dark skies, the Beehive Cluster looks like a small nebulous object to the naked eye, and has been known since ancient times. Classical astronomer Ptolemy described it as a "nebulous mass in the breast of Cancer". It was among the first objects that Galileo studied with his telescope.

Age and proper motion coincide with those of the Hyades, suggesting they may share similar origins. Both clusters also contain red giants and white dwarfs, which represent later stages of stellar evolution, along with many main sequence stars.

Distance to M44 is often cited to be between 160 and 187 parsecs (520–610 light years), but the revised Hipparcos parallaxes (2009) for Praesepe members and the latest infrared color-magnitude diagram favors an analogous distance of 182 pc. There are better age estimates of around 600 million years (compared to about 625 million years for the Hyades). The diameter of the bright inner cluster core is about 7.0 parsecs (23 light years).

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	Distinct awarded users	Total awarded images
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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	4530388
PixInsight job	4FEHF4QFVZ9F80S829WG58PBVBQPNSND
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	08h40m28s.295
RA (top/left)	08h43m46s.998
RA (top/right)	08h39m44s.900
RA (bottom/right)	08h37m09s.439
RA (bottom/left)	08h41m11s.889

Dec (center)	+19°39′29″.32
Dec (top/left)	+19°35′57″.64
Dec (top/right)	+20°25′17″.30
Dec (bottom/right)	+19°42′47″.86
Dec (bottom/left)	+18°53′43″.36

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M 44 The Beehive Cluster

M 44 The Beehive Cluster

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M 44 The Beehive Cluster

M 44 The Beehive Cluster

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