How big are open clusters?

1 Answer

Diameter: Less than 10 - more than 100 light years.


These unstable star clusters can group up to a few thousand contemporaneous stars.

In fact, if we consider only the core of the open clusters, it could measure 6 light years approximately.

But if we take into account the whole cluster diameter, it will range from less than 10 to more than 100 light years.

The size varies greatly.