ScorpiusCentaurus Association

the nearest OB association to the Sun

Astronomical Object
Scorpius–Centaurus association

The OB association closest to the sun

The Scorpius–Centaurus association is the nearest OB association to the Sun. This stellar association is composed of three subgroups and its distance is about 130 parsecs or 420 light-years. Using improved Hipparcos data, Rizzuto and colleagues analysed nearby stars more closely, bringing the number of known members to 436. They doubt the need to add a subclassification because they found a more continuous spread of stars.

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