Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  M 92  ·  NGC 6341
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M92 in Hercules, Pete Bouras
M92 in Hercules
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M92 in Hercules

Getting plate-solving status, please wait...
M92 in Hercules, Pete Bouras
M92 in Hercules
Powered byPixInsight

M92 in Hercules

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An LRGB image processed in PI.
Looking at my 2022 effort shot at Mt Pinos high altitude dark site (8300' elevation), this one clearly does not have the resolution due to seeing at lower altitude in my backyard. 
Included the cropped image which was 2x drizzled, and the widefield image which was not drizzled, and features a lot of little galaxies scattered about 

Messier 92 (also known NGC 6341) is a globular cluster of stars in the northern constellation of Hercules.
It was discovered by Johann Elert Bode on December 27, 1777, then published in the Berliner Astronomisches Jahrbuch during 1779.
It was inadvertently rediscovered by Charles Messier on March 18, 1781, and added as the 92nd entry in his catalogue. William Herschel first resolved individual stars in 1783.

It is one of the brighter of its sort in apparent magnitude in the northern hemisphere and in its absolute magnitude in the galaxy, but it is often overlooked by amateur astronomers due to angular proximity to bright cluster Messier 13, about 20% closer. Though when compared to M13, M92 is only slightly less bright, but about 1/3 less extended. It is visible to the naked eye under very good viewing conditions. With a small telescope, M92 can be seen as a nebulous smudge even in a severely light-polluted sky, and can be further resolved in darker conditions.

It is also one of the galaxy's oldest clusters. It is 33×103 ly (10 kpc) from the Galactic Center. It is about 26,700 light-years away from the Solar System. 

Characteristic of other globulars, it has little of the elements other than hydrogen and helium; astronomers term this low metallicity. Specifically, relative to the Sun, its iron abundance is [Fe/H] = –2.32 dex, which is 0.5% of 1.0, on this logarithmic scale, the solar abundance. This puts the estimated age range for the cluster at 11 ± 1.5 billion years. Its true diameter is 109 ly, and may have a mass corresponding to 330,000 suns. (wikipedia)

Thanks for looking 
Clear Skies
-Pete

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Title: M92 wide field

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M92 in Hercules, Pete Bouras

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