About NGC 581 (M103)

NGC 581 is a rewarding deep-sky target and appears as a soft glow. It has moderate brightness.

Current visibility

It is currently below the horizon.

It does not reach a useful observing altitude today.

Observing conditions matter, contrast improves away from light pollution.

Observing tips

This object is better suited for experienced observers.

What to expect

With larger apertures, more structure becomes visible.

Type

Open Cluster

Constellation

Cassiopeia

Distance

8000 ly

Size

5.0'

Season

Autumn

Difficulty

Easy

Magnitude

7.4