View Pit Stop page for race #791 by sivara — Ghost race
View profile for Simon (sivara)
Official speed | 96.73 wpm (44.04 seconds elapsed during race) |
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Race Start | February 29, 2020 1:42:19pm UTC |
Race Finish | February 29, 2020 1:43:03pm UTC |
Outcome | Win (1 of 5) |
Accuracy | 98.0% |
Points | 93.50 |
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. |