Alt. Designations: NGC 6475
Object Type: Open Cluster
Constellation: Scorpius
Distance: 0.8 kly
Right Ascension: 17h 53m 50.0s
Declination: -34° 47´ 36"
Visual Magnitude: 3.3
Apparent Dimension: 75.0´ Dia.
Best Month To View: May

Another galactic cluster to be found in the rich hunting grounds of the constellation of Scorpius is M7, also known as Ptolemy's cluster. It is a large group of about 80 stars set against the background of fainter and more distant Milky Way stars. M7 is about 18 light-years in diameter and lies about 800 light-years from us. The brightest star of the cluster is a yellow giant with a magnitude of 5.6. This bright cluster makes a sine target for the binocular observer.