The differences in location between open and globular star clusters result from the interplay between gravity and rotational motion. This rotational motion is called angular momentum, and is a ...

This evening, look high in the southeast a few hours after sunset to find the stately constellation Aquila the Eagle, anchored by its brightest star, magnitude 0.8 Altair. In the northwestern regions ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A Hubble Space Telescope ...

Stars usually form in clusters, which can also form in pairs or groups. Binary clusters (BCs) are defined as pairs of open clusters closely associated both in position and kinematics. They provide ...

"Clusters rich in red supergiants are very rare and tend to be very far away, but they play a crucial role in understanding key aspects in the evolution of massive stars." When you purchase through ...

Open clusters (OCs) are groups of stars formed from the same giant molecular cloud and loosely gravitationally bound to each other. Astronomers are interested in exploring the structures of OCs in ...

The Beehive Cluster is an open cluster in the constellation Cancer. It is one of the nearest open clusters to the Solar System, and it contains a larger star population than most other nearby clusters ...

the constellation Orion with the Orion Nebula Cluster as the central “star” in the sword of Orion, the Pleiades and the Hyades. All three open clusters are highlighted by large yellow circles. Orion ...

Warm mid-August summer nights offer prime conditions for spotting three magnificent star clusters visible to northern-hemisphere skywatchers in the coming months. Star clusters are gravitationally ...