File:Messier 13 - The Hercules Globular Cluster.jpg

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Messier 13 - The Hercules Globular Cluster Credit: ZTF, Giuseppe Donatiello

J2000 RA 16h 41m 41.24s Dec +36° 27′ 35.5″ Messier 13 (M13), or NGC 6205, is a globular cluster of about 300,000 stars in Hercules, discovered by Edmond Halley in 1714, and catalogued by Charles Messier on June 1, 1764. M13 is about 145 light-years in diameter and at 25,100 light-years away from Earth.

The Arecibo message of 1974, which contained encoded information about the human race, DNA, atomic numbers, Earth's position and other information, was beamed from the Arecibo Observatory radio telescope towards M13 as an experiment in contacting potential extraterrestrial civilizations in the cluster.
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Source Messier 13 - The Hercules Globular Cluster
Author Giuseppe Donatiello from Oria (Brindisi), Italy

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

This image was originally posted to Flickr by gjdonatiello at https://flickr.com/photos/133259498@N05/49677221743. It was reviewed on 17 September 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero.

17 September 2020

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current21:45, 17 September 2020Thumbnail for version as of 21:45, 17 September 20202,177 × 2,682 (3.87 MB)Fabian RRRR (talk | contribs)=={{int:filedesc}}== {{Information |Description=Messier 13 - The Hercules Globular Cluster Credit: ZTF, Giuseppe Donatiello J2000 RA 16h 41m 41.24s Dec +36° 27′ 35.5″ Messier 13 (M13), or NGC 6205, is a globular cluster of about 300,000 stars in Hercules, discovered by Edmond Halley in 1714, and catalogued by Charles Messier on June 1, 1764. M13 is about 145 light-years in diameter and at 25,100 light-years away from Earth. The Arecibo message of 1974, which contained encoded information abo...

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