The Ptolemy's Cluster is a open cluster in the constellation Scorpius, located about 800 light-years from Earth. With an apparent size of 30.0' and a magnitude of 4.1, it is best observed during summer.

Under dark skies, this object is considered Easy to observe with small amateur telescopes.

Type

Open Cluster

Constellation

Scorpius

Distance

800 ly

Size

30.0'

Season

Summer

Difficulty

Easy

Magnitude

4.1