About Hercules Globular Cluster (M13)

Hercules Globular Cluster is a rewarding deep-sky target and appears as a soft glow. It is relatively bright.

Current visibility

It is currently below the horizon.

It stays above 30° for roughly 7 hours.

Observing conditions matter, structure becomes clearer under good conditions.

Observing tips

It is often recommended as an entry-level object.

What to expect

With larger apertures, more structure becomes visible.

It appears more compact than typical clusters.

Type

Globular Cluster

Constellation

Hercules

Distance

22800 ly

Size

23.2'

Season

Summer

Difficulty

Very Easy

Magnitude

5.8