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typeracer

Pit Stop
Racer Porom (pkmvp)
Race Number 226
Date Wed, 1 Nov 2017 20:55:28
Speed 45 WPM Try to beat?
Accuracy 91.9%
Rank 4th place (out of 4)
Opponents seethemseagulls (3rd place) xbelement (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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