HR diagrams (all)

Front

What is a Nebula?

Back

A large cloud of gas and dust in interstellar space; the predecessor to stars.

Front

Which star is the hottest?

Back

Blue Star.

Front

What characteristics are used to classify stars?

Back

Temperature/color and brightness.

Front

How is our sun classified compared to other stars?

Back

Medium size with medium temperature.

Front

What color are the coolest stars?

Back

Red.

Front

What is the main sequence in an HR diagram?

Back

A continuous band of stars that ranges from hot, bright stars to cool, dim stars.

Front

What does the x-axis of an HR diagram represent?

Back

The temperature of stars, usually measured in Kelvin.

Front

What does the y-axis of an HR diagram represent?

Back

The luminosity (brightness) of stars, often measured in solar units.

Front

What type of stars are found in the upper right corner of an HR diagram?

Back

Red giants.

Front

What type of stars are found in the lower left corner of an HR diagram?

Back

White dwarfs.