Star Clusters

Approximately how many open clusters have been observed?

• a dozen

• a hundred

• a thousand

• a million

Unexpectedly, there are some blue stars in globular clusters. These are referred to as ___

• merging outliers

• blue stragglers

• rare colliders

• massive attenuators

Tags

NGSS.HS-ESS1-3

How many globular clusters are known to orbit the Milky Way galaxy?

• 2

• 52

• about 150

• about 520

Earth-like planets likely don't form in globular clusters because the stars ___

• are too hot

• are too young

• are loosely packed

• lack heavy metals

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

What are the two main types of star clusters?

• Open clusters and Globular clusters

• Spiral clusters and Elliptical clusters

• Irregular clusters and Barred clusters

• Dwarf clusters and Giant clusters