Guest
Race Result Details |
| Racer | John (john_madden) |
| Race Number | 181 |
| Date | Mon, 24 Jun 2019 16:48:33 |
| Speed |
63 WPM
 Try to beat?
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| Accuracy | 97.1% |
| Rank | 3rd place (out of 5) |
| Opponents | the_dealer (4th place) |
Text typed:
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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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