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GALAXIES? So you want to know more about. Types of Galaxies.

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Presentation on theme: "GALAXIES? So you want to know more about. Types of Galaxies."— Presentation transcript:

1 GALAXIES? So you want to know more about

2 Types of Galaxies

3 Spiral galaxies are characterized by a distinct flattened spiral disk with a bright center called the nucleus. Our own Milky Way is a spiral galaxy.Milky Way Click here to fly through a spiral galaxy! Click here to fly through a spiral galaxy!

4 A barred spiral galaxy is very similar to a spiral with one important difference. The arms spiral out from a straight bar of stars instead of from the center. About one third of all spiral galaxies are barred spiral in shape.barred spiral

5 Elliptical galaxies Elliptical galaxies vary in shape from completely round to extremely elongated ovals. Unlike spiral galaxies, they have no bright nucleus at their center.

6 A fourth type of galaxy is known as the irregular galaxy. These galaxies have no distinguishing shape or structure.irregular galaxy

7 Nearly every object in this image taken by the Hubble Space Telescope is a galaxy each containing 10s of billions to trillions of stars. The large grouping of galaxies filling the center of this image is the most massive galaxy cluster known, and lies 2 billion light years away. Most of the small blurs of light are galaxies even more distant.


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