144 Test 3 Review

Front

What is the main sequence star classification for the highest mass?

Back

B6 V

Front

Which type of star has the longest life on the H-R diagram?

Back

M3

Front

How can you determine the age of a star cluster?

Back

By observing the main sequence turn off.

Front

What element will remain in the core of our sun after it dies?

Back

Carbon

Front

Is the statement 'The event horizon surrounding black holes is a physical barrier that light cannot cross' true or false?

Back

False.

Front

What is the main sequence?

Back

A continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

Front

What does the H-R diagram represent?

Back

The Hertzsprung-Russell diagram plots stars according to their absolute magnitude and temperature.

Front

What is a black hole?

Back

A region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is the significance of the main sequence turn off in a star cluster?

Back

It indicates the age of the cluster; older clusters have a turn off point at lower mass stars.

Front

What happens to a star like our sun at the end of its life cycle?

Back

It will shed its outer layers and leave behind a carbon core.