M 7 NGC 6475 (Ptolemy’s Cluster)

Capture

Seestar s50 39 stacks

Date

3 October 2025

Location

Camden, NSW

Original

1080 × 1920 px

M 7 NGC 6475 (Ptolemy’s Cluster) is an open cluster of stars in the constellation of Scorpius. Telescopic observations of the cluster reveal about 80 stars within a field of view of 1.3 degrees across. The estimated distance is 980 light years. By astronomical standards it is relatively young at 200 million years old. Apparent magnitude 3.3.

See it in the star clusters gallery