Home > Astronomy, Astrophysics, General Astronomy, Stars > Surprising Theorists, Stars Within Middle-Aged Clusters Are Of Similar Age

Surprising Theorists, Stars Within Middle-Aged Clusters Are Of Similar Age


Image: NASA/ESA Hubble Space Telescope/Fabian RRRR

Image: NASA/ESA Hubble Space Telescope/Fabian RRRR

A close look at the night sky reveals that stars don’t like to be alone; instead, they congregate in clusters, in some cases containing as many as several million stars. Until recently, the oldest of these populous star clusters were considered well understood, with the stars in a single group having formed at different times, over periods of more than 300 million years. Yet new research published online today in the journal Nature suggests that the star formation in these clusters is more complex.

Using data from the Hubble Space Telescope, a team of researchers at the Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University and the Chinese Academy of Science’s National Astronomical Observatories in Beijing have found that, in large middle-aged clusters at least, all stars appear to be of about the same age.

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