Pit Stop
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Race Result Details

Racer modest (true_everest)
Race Number 1301
Date Mon, 29 Jul 2019 21:56:33 +0000
Speed 53 WPM Try to beat?
Accuracy 93.5%
Rank 2nd place (out of 2)
Opponents danielsiew (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.
Astronomy: A Beginner's Guide to the Universe (7th Edition) (book) by Eric Chaisson, Steve McMillan (see stats)

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