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4.2.15

Putting "Scale" into perspective

Planets, stars and galaxies compared
While there are some small errors in the numbers quoted, this snappy video gives a good sense of the scale of various heavenly bodies. (For an explanation of the details, visit this Slate article. - for example, the planets will fit between Earth and the Moon if you arrange them carefully, the Galaxy IC 1101 is incorrectly called IC 1011, and not every star has planets, but many do!)

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