Star Clusters

Overall, Open clusters are ....

• young and old

• young

• old

• no one knows

What happens to lower mass stars in an open cluster?

• They fall into the center and collide

• Nothing

• They explode from the pressure of higher mass stars

• They get flung out of the cluster

What will eventually happen to an Open Cluster over time?

• It will disappear

• It will double in size

• It will triple in size

• Nothing

A famous Open Cluster is the

• Preafleas

• Pielbees

• Pleiades

• Pleigees

How many stars are in a Globular Cluster?

• Hundreds of thousands

• Dozens

• Millions

• Thousands

What shape is a Globular Cluster?

• Spherical

• Irregular

• Dumbell

• Spiral

Overall, Globular Clusters are

• old

• young and old

• It is unknown

• young

The stars in a Globular Cluster are less massive than the Sun?

• True

• False

Why is it highly unlikely that any of the stars in a Globular Cluster would have planets?

• The lack the lighter elements needed to form atmospheres

• They lack the heavier elements and metals needed to form planets

• The stars are just too young to have formed planets yet

• They are so old the planets would have vanished

What is the primary difference between open clusters and globular clusters?

• Open clusters are younger and contain fewer stars than globular clusters.

• Globular clusters are younger and contain fewer stars than open clusters.

• Open clusters are older and contain more stars than globular clusters.

• Globular clusters are older and contain more stars than open clusters.