Ch. 2 Test Review

Front

What is an elliptical galaxy?

Back

A galaxy that is oval shaped or shaped like a football.

Front

Where is the Milky Way galaxy located in the solar system?

Back

In one of the spiral arms.

Front

What does the Hertzsprung-Russell diagram represent?

Back

A graph used to classify stars based on their brightness and temperature.

Front

What are sunspots?

Back

Features of the Sun that change over short periods of time.

Front

Which type of star is the hottest?

Back

A blue main sequence star.

Front

What is a spiral galaxy?

Back

A galaxy characterized by its spiral shape with arms winding outwards.

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing, not even light, can escape.

Front

What is a red supergiant star?

Back

A large star that has expanded and cooled, appearing red in color.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a larger star after it has exhausted its nuclear fuel.

Front

What are globular clusters?

Back

Tightly packed groups of stars that are older and found in the halo of galaxies.