Using data from ESA's Gaia satellite, astronomers from Chile have inspected a young open cluster known as NGC 6383. Results of the new study, presented in a paper published March 1 on the pre-print ...

An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other. In contrast, globular clusters ...

This week’s small-telescope target is the Black Swallowtail Butterfly Cluster in northern Ophiuchus. This open cluster also goes by the designation IC 4665. It’s OK if you’ve never observed (or even ...