M13 - Hercules Cluster

The galaxy north-east of M 13 is NGC 6207, a Sc-type spiral, 46 Million light years away.
M13 was discovered in 1714 by Edmund Halley. This large globular cluster in the constellation Hercules is visible to the naked eye. It is about 26,000 light years away. More than 1,000,000 stars are concentrated in a region with a diameter of about 160 light years. The cluster has 600,000 times the mass of the Sun. The blue stars, called "blue stragglers," might be the result of mergers of old main-sequence stars in the cluster.

The galaxy northeast of M13 is NGC 6207, an Sc-type spiral galaxy, 46 million light years away.