The Hercules Globular Cluster, Andrew Pile

The Hercules Globular Cluster

The Hercules Globular Cluster, Andrew Pile

The Hercules Globular Cluster

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Description

Several hundred thousand stars tightly packed together at 22-25,000 light years awayin Hercules.
M13 was the target of the 1974 Arecibo message looking for ET - so far no reply apart from a hoax in 2001.

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Histogram

The Hercules Globular Cluster, Andrew Pile