Stars and HR Diagrams

Front

What is the closest star to Earth?

Back

The Sun.

Front

What type of star is Betelgeuse?

Back

A supergiant star.

Front

What type of star is Mira?

Back

A giant star.

Front

What does the color of a star indicate?

Back

The temperature of the star.

Front

Which star is an example of a main sequence star?

Back

Vega.

Front

What is the main sequence in the HR diagram?

Back

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

Front

What is a supergiant star?

Back

A very large star that is even more massive than a giant star.

Front

What is a giant star?

Back

A star that is larger and brighter than a main sequence star of the same temperature.

Front

What is the significance of the HR diagram?

Back

It helps to classify stars based on their luminosity, color, temperature, and evolutionary stage.

Front

What is luminosity?

Back

The total amount of energy emitted by a star per unit time.