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typeracer

Pit Stop
Racer Wontik (wontik)
Race Number 38
Date Tue, 27 Feb 2018 22:02:31
Speed 59 WPM Try to beat?
Accuracy 97.2%
Rank 2nd place (out of 4)
Opponents jakarta_ajn (1st place) paulschmitter7 (3rd 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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