Globular Cluster Messier 12 (M12 or NGC 6218) (Tom Wildoner)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: HD151392 · HD151526 · HD151630 · M 12 · NGC 6218

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Globular Cluster Messier 12 (M12 or NGC 6218)

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Globular Cluster Messier 12 (M12 or NGC 6218)

Messier 12 (M12 or NGC 6218 in the New General Catalog) is a globular cluster in the constellation Ophiuchus. It is also referred to as the “Gumball Globular”. It was discovered in 1764 by the French astronomer Charles Messier who described it as a “nebula without stars”. M12 is approximately 15,700 light-years distant. You will definitely need binoculars or a small telescope to see this cluster. This cluster contains about 200,000 stars, the brightest of them are about 12th magnitude.

Observation data (J2000 epoch)
Class: IX
Constellation: Ophiuchus
Right ascension: 16h 47m 14.18s
Declination: –01° 56′ 54.7″
Distance: 16.44 ± 0.16 kly
Apparent magnitude (V): 6.7
Apparent dimensions (V): 16′.0

Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO ASI2600MC camera running at 0F, 90x60 seconds guided exposures, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: May 11, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

Messier Objects

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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	7797613
PixInsight job	Y3TFLW39FBDXBIE2QU4JLDQS6LEC0COY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h47m15s.590
RA (top/left)	16h49m18s.248
RA (top/right)	16h45m00s.530
RA (bottom/right)	16h45m12s.570
RA (bottom/left)	16h49m29s.933

Dec (center)	-01°57′15″.70
Dec (top/left)	-01°31′25″.82
Dec (top/right)	-01°35′25″.75
Dec (bottom/right)	-02°23′10″.90
Dec (bottom/left)	-02°18′59″.99

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Globular Cluster Messier 12 (M12 or NGC 6218)

Globular Cluster Messier 12 (M12 or NGC 6218)

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Globular Cluster Messier 12 (M12 or NGC 6218)

Globular Cluster Messier 12 (M12 or NGC 6218)

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