M 13 - Great Globular Cluster in Hercules (Monty Chandler)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: HD150679 · HD150998 · Hercules Globular Cluster · IC 4617 · M 13 · NGC 6205 · NGC 6207

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M 13 - Great Globular Cluster in Hercules

Link: https://montychandler.smugmug.com/Astrophotography/The-Heavans/i-7X9kXJW

Powered byPixInsight

M 13 - Great Globular Cluster in Hercules

Link: https://montychandler.smugmug.com/Astrophotography/The-Heavans/i-7X9kXJW

Globular clusters are thought to be among the oldest objects in the Universe, and perhaps the most famous of all is M13, known as the Hercules Globular Cluster, or the Great Globular Cluster in Hercules. These spherical collections of gravitationally-bound stars are thought to have formed during the early Universe, some 10-15 billion years ago.

Like shiny flakes sparkling in a snow globe, 300,000 stars whirl within the globular cluster M13, one of the brightest star clusters visible from the Northern Hemisphere. Located some 25,100 light-years away from Earth, this cluster is made up of 300,000 stars and occupies a region of space that measures 145 light-years in diameter.

Near the core of M13, the density of the stellar population is about a hundred times greater than the density in the neighborhood of our sun. These stars are so crowded that they can, at times, run into each other and even form a new star. Globular clusters contain hundreds of thousands of stars, and make for wonderful objects to observe through a telescope or to photograph.

This image consists of 302 120sec subframes, or a total of 10 hours exposure. Imaged with an ASI2600MC Pro camera, SkyWatcher Esprit 120ED scope & SkyWatcher EQ6r Pro mount. Processed manually in 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
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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
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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	5692400
PixInsight job	GDGH3RLHJXGOJVET792WOATQ0FWMMP79
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m43s.839
RA (top/left)	16h46m17s.614
RA (top/right)	16h40m02s.356
RA (bottom/right)	16h37m10s.138
RA (bottom/left)	16h43m23s.388

Dec (center)	+36°27′52″.37
Dec (top/left)	+36°25′53″.94
Dec (top/right)	+37°19′01″.78
Dec (bottom/right)	+36°29′09″.75
Dec (bottom/left)	+35°36′36″.50

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M 13 - Great Globular Cluster in Hercules

M 13 - Great Globular Cluster in Hercules

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Image Index:

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M 13 - Great Globular Cluster in Hercules

M 13 - Great Globular Cluster in Hercules

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