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by nandomrumber 410 days ago
The length of 2.1 trillion Olympic swimming pools.

Or 698 trillion bananas.
2 comments
nmeofthestate 410 days ago
It helps if you picture Planet 9 orbiting on the surface of a sphere with the surface area of 6.6349344e+18 Waleses.
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MisterTea 410 days ago
I only understand American football fields :-<
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