Messier 7 (M7) – The Ptolemy Cluster
First observed in the 2nd century CE, the Messier 7 cluster (aka. the Ptolemy Cluster) is one of the objects that can be seen with the naked eye
Messier 7 (M7) – The Ptolemy Cluster
First observed in the 2nd century CE, the Messier 7 cluster (aka. the Ptolemy Cluster) is one of the objects that can be seen with the naked eye
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