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Correction for the height of Olympus Mons

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How long is 12,756.2730 kilometers?
It's about 450 times as tall as Olympus Mons
The height of Olympus Mons is about 27 kilometers.
(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 27 km. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
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