Skip to content

Explore Community Leaderboard

© 2026 Starbook · starbook.si

About Terms Privacy Cookies

Explore Community Leaderboard

Sign in Create account

Theme

Explore Community Leaderboard Sign in

M 103

Open cluster · Cassiopeia

M 103

Also known as NGC 581

Messier 103

More about M 103

See all on Explore
Upload a picture of M 103

Type: Open cluster
Constellation: Cassiopeia
Position (J2000): 1h 33m 22s · +60° 39′ 29″
Discovered: by Pierre Méchain in 1781

Pictures: 0
Magnitude: 7.4; visual
Size: 4.5′
Distance: ~7,800 ly
Best months: Sep–Nov

Catalogue data from OpenNGC by Mattia Verga, CC BY-SA 4.0. Distances, discoverers and common names from Wikidata, CC0.

The community's pictures

See all on Explore

Loading

No one has published a picture of M 103 yet.

Upload a picture of M 103