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typeracer

Pit Stop
Racer A (aherlock)
Race Number 55
Date Mon, 23 Nov 2020 22:57:30
Speed 91 WPM Try to beat?
Accuracy 97.6%
Rank 2nd place (out of 2)
Opponents jb2k1 (1st place)

Text typed:

If an exoplanet happens to transit its star, we can often determine both its mass and its radius, and hence estimate its density and possibly even its composition. More than 200 transiting hot Jupiters have been measured in this way. But when astronomers calculate their densities the numbers they obtain are generally much lower than predicted by theory.
— (book) by Eric Chaisson, Steve McMillan (see stats)

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