Stars and HR Diagrams

Front

What is the Hertzsprung-Russell Diagram?

Back

A graph used to classify stars according to their luminosity, color, temperature, and stage.

Front

Which star is the hottest?

Back

Blue Star

Front

What is the main characteristic used to classify stars?

Back

Color, Temperature, and Size are used to classify stars, but Shape is NOT.

Front

Is the Sun the biggest star in all of space?

Back

False

Front

Which star is brighter than Alpha Centauri B, but dimmer than the sun?

Back

Tau Ceti

Front

What does luminosity refer to in stars?

Back

Luminosity refers to the total amount of energy emitted by a star per unit of time.

Front

What color are the coolest stars?

Back

Red stars are the coolest.

Front

What color are the hottest stars?

Back

Blue stars are the hottest.

Front

What is the main fuel for stars during their main sequence phase?

Back

Hydrogen is the main fuel for stars during their main sequence phase.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion of a star, marking the end of its life cycle.