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typeracer

Pit Stop
Racer Keveloper (thekeveloper)
Race Number 174
Date Sun, 21 Apr 2019 19:30:34
Speed 104 WPM Try to beat?
Accuracy 96.2%
Rank 1st place (out of 4)
Opponents zeththedarkmage (2nd 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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