Messier 3 Globular Cluster (Monty Chandler)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD119025 · HD119081 · HD119391 · M 3 · NGC 5263 · NGC 5272

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Messier 3 Globular Cluster

Link: https://montychandler.smugmug.com/Astrophotography/The-Heavans/i-qgZz87D

Powered byPixInsight

Messier 3 Globular Cluster

Link: https://montychandler.smugmug.com/Astrophotography/The-Heavans/i-qgZz87D

34,000 light years from earth, Messier 3 (M3 or NGC 5272), at 11.4 billion years old with 500,000 stars, is one of the largest and brightest globular clusters in the northern constellation of Canes Venatici. Uniquely, it contains at least 274 variable stars.

Many amateur astronomers consider it one of the finest northern globular clusters, following only Messier 13 (Hercules Globular Cluster). M3 has an apparent magnitude of 6.2, making it a difficult naked eye target even with dark conditions. With a moderate-sized telescope, the cluster is fully defined.

This image was captured from my backyard using a SW Esprit 120ED scope and ASI2600MC Pro camera riding a SW EQ6r Pro mount. 66 subs @ 120". 134 subs @ 60". Total of 4.4 hrs using an LPro filter. Image acquisition using APT & PHD2. Processed manually with PixInsight.

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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
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	5713275
PixInsight job	EMQJQNR1W3UZYW8QL61LS3TLKLEKVV9T
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h42m12s.590
RA (top/left)	13h46m17s.320
RA (top/right)	13h40m39s.867
RA (bottom/right)	13h38m07s.825
RA (bottom/left)	13h43m43s.968

Dec (center)	+28°23′24″.15
Dec (top/left)	+28°21′13″.10
Dec (top/right)	+29°13′17″.37
Dec (bottom/right)	+28°25′07″.87
Dec (bottom/left)	+27°33′26″.38

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Messier 3 Globular Cluster

Messier 3 Globular Cluster

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Messier 3 Globular Cluster

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