M3 (John Favalessa)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 3 · NGC 5263 · NGC 5272 · PGC 1820483 · PGC 1820842 · PGC 1821162 · PGC 1821955 · PGC 1822736 · PGC 1824287 · PGC 1824380 · PGC 1824999 · PGC 1826470 · PGC 1826590 · PGC 1826693 · PGC 1829643 · PGC 1830543 · PGC 1830760 · PGC 1830840 · PGC 1831397 · PGC 1832217 · PGC 1832635 · PGC 1834325 · PGC 1835898 · PGC 1838002 · PGC 1838888 · PGC 1840051 · PGC 1840714 · PGC 1841651 · PGC 1841815 · PGC 1842087 · And 21 more.

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M3

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M3

3 Messier Globular Clusters down, 25 to go! 17 of which will need more focal length than my 102GT. Of the 157 known globular clusters of our Milky Way, 28 are in the Messier catalog, 104 are in the NGC catalog, and 3 more in the IC catalog from wikipedia, "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." How about that! M3 is 34K light years away, 11.4 billion years old, radius of 90 light years, mag 6.2

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SoCal Astrophotography

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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	4576269
PixInsight job	K4S91IOP9LSQUQH9O18YMRF22HUJQ9NM
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h41m59s.99
RA (top/left)	13h44m01s.30
RA (top/right)	13h44m30s.33
RA (bottom/right)	13h39m57s.50
RA (bottom/left)	13h39m30s.31

Dec (center)	+28°21′37″.5
Dec (top/left)	+27°48′39″.0
Dec (top/right)	+28°48′16″.6
Dec (bottom/right)	+28°54′29″.4
Dec (bottom/left)	+27°54′48″.6

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M3

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Image Index:

Contribution Index (beta):

M3

M3

Equipment

Acquisition details

Description

Comments

Sky plot

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In these public groups

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