Messier 3 (Dave Boddington)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD119081 · HD119391 · M 3 · NGC 5263 · NGC 5272

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Messier 3

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Messier 3

Messier 3 is a globular cluster in Canes Venatici. It was discovered on May 3, 1764, and was the first Messier object to be discovered by Charles Messier himself. Messier originally mistook the object for a nebula without stars. This mistake was corrected after the stars were resolved by William Herschel around 1784. Since then, it has become one of the best-studied globular clusters.

This cluster is one of the largest and brightest, and is made up of around 500,000 stars. It is 90 light years across, estimated to be 11.4 billion years old and is located at a distance of about 33,900 light-years away from Earth. It is also 31,600 light years above the Galactic plane and roughly 39000 light years from the center of the Milky Way.

Esprit150/SX46 2hours per channel RGB. Processed in APP Pixinsight and Photoshop.

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UK Astro-Imaging

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	3394060
PixInsight job	UODVB94H1IZVJ8PWKR02BOA8J31VG7SQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h41m39s.32
RA (top/left)	13h43m39s.21
RA (top/right)	13h39m41s.92
RA (bottom/right)	13h39m40s.41
RA (bottom/left)	13h43m36s.14

Dec (center)	+28°20′20″.1
Dec (top/left)	+28°41′07″.2
Dec (top/right)	+28°41′44″.6
Dec (bottom/right)	+27°59′26″.2
Dec (bottom/left)	+27°58′47″.1

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Contribution Index (beta):

Messier 3

Messier 3

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Image Index:

Contribution Index (beta):

Messier 3

Messier 3

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Description

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Sky plot

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