Types and Characteristics of Galaxies

Front

Where is Earth’s solar system located within the Milky Way galaxy?

Back

In one of the spiral arms.

Front

Which type of galaxy is the Milky Way?

Back

Spiral.

Front

What is the main difference between elliptical and spiral galaxies?

Back

Elliptical galaxies have a smooth, featureless appearance, while spiral galaxies have a flat, rotating disk with spiral arms.

Front

What is a characteristic feature of spiral galaxies?

Back

They have a flat, rotating disk with spiral arms.

Front

Why do irregular galaxies not fit into the categories of spiral or elliptical galaxies?

Back

They lack a defined shape and structure.

Front

What are the three main types of galaxies?

Back

Spiral, elliptical, and irregular.

Front

What is the shape of elliptical galaxies?

Back

They have an oval or elliptical shape.

Front

What type of stars are mostly found in spiral galaxies?

Back

They are composed mostly of younger, blue stars.

Front

What is a defining feature of irregular galaxies?

Back

They do not have a defined shape or structure.

Front

How do spiral galaxies form their arms?

Back

Spiral arms are formed by density waves that compress gas and dust.