Thursday, October 17, 2013

Does the Milky Way look like a Catherine-wheel

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The Milky Way is the galaxy that contains our solar system. It is a spiral galaxy and contains about 300 billion stars. Viewed face-on, our  galaxy and contains about 300 billion stars. Viewed face-on, our galaxy looks like a gigantic Catherine wheel, while side-on on it looks like a flat disc. Since we, the observers, are within this disc, we see most stars as making up a bright strip that extends across the sky, which is where the name Milky Way originally came from. In fact, all the stars visible with the naked eye are part of the Milky Way.

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