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Messier 7 is an open star cluster, a group of stars that formed together and are still loosely bound by gravity, located about 800 light-years away in the constellation Scorpius. It's easily visible to the naked eye under clear skies and has been observed by astronomers since ancient times, making it one of the most recognizable star clusters in the night sky.
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Messier 7 or M7, also designated NGC 6475 and sometimes known as Ptolemy's Cluster, is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with the naked eye, close to the "stinger" of Scorpius. With a declination of −34.8°, it is the southernmost Messier object.
Observations