Spiral Galaxy Facts
Spiral Galaxy Facts
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| Interesting Spiral Galaxy Facts: |
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| The really bright spots that can be seen in spiral galaxies are newly formed, large stars. |
| The large stars of a spiral galaxy do not last very long because they are constantly burning large amounts of fuel. |
| The most common type of galaxy is the spiral galaxy. |
| About 77% of the galaxies that have been observed by man are spiral galaxies. |
| Spiral galaxies are separated into smaller groups based on how tightly wound the arms are. |
| Type A galaxies have tightly wound arms, type b have looser arms, and type c have extremely loose arms. |
| Spiral galaxies are also known as disk galaxies. |
| Spiral galaxies have a bulging center which is called the bulge. |
| The bulge of a spiral galaxy contains old stars and a black hole. |
| Sometimes galaxies merge with each which causes them to grow bigger or they are destroyed all together. |
| A barred spiral galaxy is one that has a core that is shaped like a bar. |
| As of 2005, the Milky Way galaxy has been classified as a Barred Spiral Galaxy. |
| The matter that holds the stars and dust together in a spiral galaxy is called Dark Matter. |
| About two thirds of all spiral galaxies are considered Barred Spiral Galaxies. |
| The majority of the mass of a spiral galaxy is made up of Dark Matter. |
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