Types of Galaxies

Front

What is an elliptical galaxy?

Back

A type of galaxy that is composed mainly of older stars and low-mass stars, with a smooth, featureless light profile.

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What are galaxies primarily composed of?

Back

Stars, dust, and gas held together by gravity.

Front

What is a spiral galaxy?

Back

A type of galaxy characterized by its spiral arms, which are made up of stars, gas, and dust.

Front

What type of galaxy is the Milky Way?

Back

The Milky Way is a spiral galaxy.

Front

What is an irregular galaxy?

Back

A type of galaxy that does not have a distinct regular shape, often containing a mix of young and old stars.

Front

What distinguishes elliptical galaxies from spiral galaxies?

Back

Elliptical galaxies have a more rounded shape and contain older stars, while spiral galaxies have distinct arms and contain younger stars.

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Can galaxies change types over time?

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Yes, galaxies can evolve and change types due to interactions and mergers with other galaxies.

Front

What is the role of gravity in galaxies?

Back

Gravity holds the stars, dust, and gas together within a galaxy.

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What is the largest type of galaxy?

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Giant elliptical galaxies are the largest type of galaxies.

Front

What is a barred spiral galaxy?

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A type of spiral galaxy that has a central bar-shaped structure made of stars.