Great Globular Cluster in Hercules - Messier 13 (Tom Wildoner)

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

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Great Globular Cluster in Hercules - Messier 13

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Great Globular Cluster in Hercules - Messier 13

Messier 13 (M13 or NGC 6205) is also referred to as the Great Globular Cluster in Hercules, is one of the brightest and best known globular clusters in the northern skies. It shines at a magnitude of 5.8, is about 22,200 light years away and contains an estimated 300,000 stars.

Observation data (J2000 epoch)
Class: V
Constellation: Hercules
Right ascension: 16h 41m 41.24s
Declination: +36° 27′ 35.5″
Distance: 22.2 kly
Apparent magnitude (V): 5.8
Apparent dimensions (V): 20 arcminutes

Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX mount, 70 x 60 second guided exposures, darks from the library and flats at the end of imaging, focused with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DSS. Image Date: February 15, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

Messier Objects

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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	7631786
PixInsight job	3MA2SH3U4VI70VBC9WLZ6C9DJQSS32U3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m40s.822
RA (top/left)	16h38m51s.589
RA (top/right)	16h39m17s.608
RA (bottom/right)	16h44m26s.507
RA (bottom/left)	16h44m06s.149

Dec (center)	+36°28′13″.44
Dec (top/left)	+37°13′26″.79
Dec (top/right)	+35°39′42″.95
Dec (bottom/right)	+35°42′45″.30
Dec (bottom/left)	+37°16′34″.28

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Great Globular Cluster in Hercules - Messier 13

Great Globular Cluster in Hercules - Messier 13

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Great Globular Cluster in Hercules - Messier 13

Great Globular Cluster in Hercules - Messier 13

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