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You confused a little. Earth takes 365 days to orbit the Sun, but the Sun takes 250 million years to orbit the center of the Milky Way.The galaxies rotate, much like this animation below. Since Earth is about 4.5 billion years old, while orbiting the Sun, Earth and the solar system have orbited the center of the galaxy about 18 times.

You confused a little. Earth takes 365 days to orbit the Sun, but the Sun takes 250 million years to orbit the center of the Milky Way.

The galaxies rotate, much like this animation below. Since Earth is about 4.5 billion years old, while orbiting the Sun, Earth and the solar system have orbited the center of the galaxy about 18 times.

Rezaul Haque

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