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, fine detail requires darker skies.

Observing tips

It requires patience and good conditions.

What to expect

In small telescopes it remains mostly unresolved.

Type

Open Cluster

Constellation

Cassiopeia

Distance

8000 ly

Size

5.0'

Season

Autumn

Difficulty

Easy

Magnitude

7.4