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typeracer

Pit Stop
Racer Raygar (raygarswank)
Race Number 25
Date Tue, 4 Apr 2017 11:16:16
Speed 83 WPM Try to beat?
Accuracy 14.3%
Rank 2nd place (out of 3)
Opponents faridz33_ (1st place) gerardgb (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)