Learn about Messier 93, a wedge-shaped open star cluster in Puppis—its history and how to observe it with binoculars or a telescope.
Tag Archives: Open Star Cluster
NGC 663: A Star Cluster Known for its Massive Star Evolution
Explore NGC 663 (Caldwell 10), a rich open star cluster in Cassiopeia, ideal for studying massive stars and double stars.
The Garden Astronomer 