M13, Great Globular Cluster in Hercules (rflinn68)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Great Cluster in Hercules · IC 4615 · M 13 · NGC 6205 · NGC 6207

M13, Great Globular Cluster in Hercules, rflinn68

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M13, Great Globular Cluster in Hercules

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M13, Great Globular Cluster in Hercules

Messier 13 (M13), also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster, is a globular cluster of about 300,000 stars in the constellation of Hercules.

M13 is about 145 light-years in diameter and is 25,100 light-years away from Earth. It is located at right ascension 16h 41.7m and declination +36° 28'. With an apparent magnitude of 5.8, it is barely visible with the naked eye on a very clear night. Its diameter is about 23 arc minutes and it is readily viewable in small telescopes. Nearby is NGC6207, a 12th magnitude edge-on galaxy that lies 28 arc minutes directly north east. A small galaxy, IC 4617, lies halfway between NGC6207 and M13, north-northeast of the large globular cluster's center.-Wiki

This was another secondary target (along with M5) that was placed on the backburners a while. The wider fields have advantages if you like background galaxies. As usual, Revision B is annotated.

Rev D...brightened the cluster (as a whole) and tamed the core a decent amount.

Original
B
C
Final
D

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	Distinct awarded users	Total awarded images
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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
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Distribution of data sources

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	Image of the day	Top pick	Top pick nominations	Total submitted
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Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
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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.
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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	1090035
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M13, Great Globular Cluster in Hercules

M13, Great Globular Cluster in Hercules

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M13, Great Globular Cluster in Hercules

M13, Great Globular Cluster in Hercules

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