View Pit Stop page for race #39213 by fightin_phils — Ghost race
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| Official speed | 154.45 wpm (27.58 seconds elapsed during race) |
|---|---|
| Race Start | January 19, 2017 6:40:52pm UTC |
| Race Finish | January 19, 2017 6:41:19pm UTC |
| Outcome | Win (1 of 3) |
| Accuracy | 96.0% |
| Points | 0.00 |
| 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. |