Scorpius–Centaurus Association

The Scorpius–Centaurus Association (sometimes called Sco–Cen or Sco OB2) is the nearestOB association to the Sun. This stellar association is composed of three subgroups (Upper Scorpius,Upper Centaurus–Lupus, and Lower Centaurus–Crux) and its distance is about130 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.

Scorpius–Centaurus Association

The Scorpius–Centaurus Association (sometimes called Sco–Cen or Sco OB2) is the nearestOB association to the Sun. This stellar association is composed of three subgroups (Upper Scorpius,Upper Centaurus–Lupus, and Lower Centaurus–Crux) and its distance is about130 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.