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typeracer

Pit Stop
Racer Praveen (will_of_fire)
Race Number 564
Date Sat, 27 May 2017 9:51:31
Speed 78 WPM Try to beat?
Accuracy 94.7%
Rank 1st place (out of 3)
Opponents imjoban (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)