View Pit Stop page for race #149 by bruce_ketta — Ghost race
View profile for Bruce_Ketta (bruce_ketta)
| Official speed | 77.38 wpm (55.05 seconds elapsed during race) |
|---|---|
| Race Start | January 9, 2020 12:47:16pm UTC |
| Race Finish | January 9, 2020 12:48:11pm UTC |
| Outcome | Win (1 of 5) |
| Accuracy | 98.0% |
| Points | 74.80 |
| 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. |