M103
M103 · Guide in the Messier Catalog
Open Cluster in Cassiopeia
Type
Open Cluster
Constellation
Cassiopeia
Magnitude
+7.40
Season
Fall
Members only
This guide is part of the Messier Catalog
The full guide shows you where M103 is, how to star-hop to it, and what you'll really see at the eyepiece, with finder charts for your type of telescope.
Already bought it and still seeing this? Email me and I'll sort it out.