Stars and HR Diagrams

Front

What is the life cycle of a massive star?

Back

Nebula -> protostar -> main sequence -> red supergiant -> supernova -> black hole.

Front

Which star is the coldest?

Back

Red Star.

Front

What is a supernova?

Back

A gigantic explosion that causes the death of a large star.

Front

What changes as you move from the bottom to the top of the H-R diagram?

Back

Luminosity or Brightness.

Front

What does a high mass star become after the main sequence?

Back

Supergiant.

Front

What is a nebula?

Back

A large cloud of gas and dust in space, often the birthplace of stars.

Front

What is a protostar?

Back

A developing star that is still gathering mass from its parent molecular cloud.

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 is a red giant?

Back

A star that has expanded and cooled, resulting in a reddish appearance.

Front

What is a black hole?

Back

A region of space having a gravitational field so intense that no matter or radiation can escape.