The Milky Way Galaxy Review

Front

What type of stars are found in the globular clusters of the Milky Way's halo?

Back

Population II stars, formed at the birth of the Milky Way.

Front

How are galaxies classified?

Back

Galaxies are classified by their shape.

Front

What did Harlow Shapley study to determine the Milky Way's size and the Sun's position?

Back

Harlow Shapley studied globular star clusters.

Front

How long does it take for the Sun to orbit the Milky Way once?

Back

225 million years.

Front

Who was the first astronomer to attempt to map the Milky Way galaxy?

Back

William Herschel.

Front

What are the three main types of galaxies?

Back

Spiral, elliptical, and irregular galaxies.

Front

What is the center of the Milky Way galaxy called?

Back

The Galactic Center.

Front

What is the approximate number of stars in the Milky Way galaxy?

Back

About 100 to 400 billion stars.

Front

What is the shape of the Milky Way galaxy?

Back

The Milky Way is a barred spiral galaxy.

Front

What is the significance of the galactic year?

Back

A galactic year is the time it takes for the Sun to complete one orbit around the Milky Way.