Star Clusters

How many types of star clusters are there?

• 1

• 2

• 3

• 4

How many stars are there in an Open Cluster?

• Very few millions to billions Dozens to thousands Dozens to millions

• millions to billions

• Dozens to thousands

• Dozens to millions

What is the shape of an Open Cluster?

• Pinwheel

• Globular

• Ring-Shaped

• Irregular shape

What is in the center of an Open Cluster?

• A neutron star

• One main big star

• A black hole

• Nothing

How far apart are stars in an Open Cluster?

• hundreds of light years

• 4 light years

• fractions of a light year

• dozens of light years

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