Messier 13 - The Great Globular Cluster in Hercules - RGB (SoundIdea)

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

Messier 13 - The Great Globular Cluster in Hercules - RGB, SoundIdea

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Messier 13 - The Great Globular Cluster in Hercules - RGB

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Messier 13 - The Great Globular Cluster in Hercules - RGB

M13 is the best globular cluster to observe from northern latitudes, and one of the five best globular clusters visible from Earth. There is an estimated one million stars in this cluster, which is 100 light years across and around 25,000 light years away from us. Globular clusters contain some of the oldest stars in the Universe. By observing the number of stars that have evolved into red giants, globular clusters are estimated to be around 10 billion years old, twice as old as the Solar System and about as old as the Galaxy itself. The stars in globular clusters appear to be made only of the lightest elements, hydrogen and helium, which marks them as being part of the first generation of stars, formed before supernovae started to contaminate the star-forming gaseous regions with heavier elements.

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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	Basic success
Started	...
Astrometry.net job	3528001
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Messier 13 - The Great Globular Cluster in Hercules - RGB

Messier 13 - The Great Globular Cluster in Hercules - RGB

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Image Index:

Contribution Index (beta):

Messier 13 - The Great Globular Cluster in Hercules - RGB

Messier 13 - The Great Globular Cluster in Hercules - RGB

Equipment

Acquisition details

Description

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Sky plot

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