Celestial hemisphere:  Southern  ·  Constellation: Ophiuchus (Oph)  ·  Contains:  M 14  ·  NGC 6402
M14 Globular Cluster, Jerry Macon
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M14 Globular Cluster

M14 Globular Cluster, Jerry Macon
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M14 Globular Cluster

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Description

Images from the following two scopes (piggybacked) contributed to this image:

AG12+ASI1600MM at .70 asec/pix (RGB)

TV127is+ASI183MM at .75 asec/pix. (RGB)

They were all registered to the best R image taken on the AG12.

Messier 14 (also known as M14 or NGC 6402) is a globular cluster of stars in the constellation Ophiuchus. It was discovered by Charles Messier in 1764.

At a distance of about 30,000 light-years, M14 contains several hundred thousand stars. At an apparent magnitude of +7.6 it can be easily observed with binoculars. Medium-sized telescopes will show some hint of the individual stars of which the brightest is of magnitude +14.

The total luminosity of M14 is in the order of 400,000 times that of the Sun corresponding to an absolute magnitude of -9.12. The shape of the cluster is decidedly elongated. M14 is about 100 light-years across.

A total of 70 variable stars are known in M14, many of the W Virginis variety common in globular clusters. In 1938, a nova appeared, although this was not discovered until photographic plates from that time were studied in 1964. It is estimated that the nova reached a maximum brightness of magnitude +9.2, over five times brighter than the brightest 'normal' star in the cluster.

My Collections:
Abell Planetary Nebulae (Complete)
Galaxies
Messier Objects
Planetary Nebulae
Sharpless 2 Objects

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M14 Globular Cluster, Jerry Macon

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Messier Objects