Stars Classification

Front

How are stars classified?

Back

Brightness and color

Front

The hottest stars are: white, blue-white, red, blue.

Back

blue

Front

What type of galaxy is shown in the picture?

Back

spiral

Front

Best estimate of the number of stars in a galaxy? Options: tens, thousands, millions, billions

Back

billions

Front

Which object in our solar system is a star?

Back

Sun

Front

What is apparent brightness?

Back

The measure of how bright a star appears to an observer on Earth.

Front

What does the Hertzsprung-Russell diagram plot?

Back

Surface temperature versus mass.

Front

Supergiants are ______.

Back

Relatively cool in temperature.

Front

At the center of most, if not all galaxies is a ________.

Back

Giant Black Hole

Front

Order the following from smallest to largest: Solar system, galaxy, universe.

Back

Solar system, galaxy, universe.