Binocular Universe: Queenly clusters

Cassiopeia the Queen reigns over one of the richest regions of the Milky Way north of the celestial equator. This month, we visit some of her lesser-known subjects. Let’s begin with open cluster NGC 129. This one is easy to find, as it sits almost exactly halfway between Caph (Beta [β] Cassiopeiae), which marks theContinue reading “Binocular Universe: Queenly clusters”
The post Binocular Universe: Queenly clusters appeared first on Astronomy Magazine.