HR Diagram

Front

What is the star that appears brightest to us on Earth?

Back

The Sun.

Front

What type of stars are the hottest?

Back

Blue stars.

Front

What does a star's temperature determine?

Back

Its color.

Front

What are the two axes of the Hertzsprung-Russell Diagram labeled?

Back

Luminosity and Temperature.

Front

Which spectral class does our star, the Sun, belong to?

Back

G.

Front

What is the main purpose of the Hertzsprung-Russell Diagram?

Back

To classify stars based on their luminosity and temperature.

Front

What color are the coolest stars?

Back

Red.

Front

What is the relationship between a star's temperature and its color?

Back

Hotter stars appear blue, while cooler stars appear red.

Front

What is luminosity in the context of stars?

Back

The total amount of energy emitted by a star per second.

Front

What spectral class is the hottest?

Back

O.