Nathan (n0xie)

Race #43

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Official speed 91.35 wpm (46.63 seconds elapsed during race)
Race Start October 11, 2017 11:30:18am UTC
Race Finish October 11, 2017 11:31:05am UTC
Outcome No win (2 of 5)
Opponents 3. smarmyraptor (82.32 wpm)
4. itsjaysonfr (78.15 wpm)
Accuracy 98.0%
Points 88.30
Text #3622418 (Length: 355 characters)

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.