View Pit Stop page for race #24558 by a9088391 — Ghost race
View profile for Kim Jong-il (a9088391)
| Official speed | 55.94 wpm (76.15 seconds elapsed during race) |
|---|---|
| Race Start | February 21, 2017 12:28:42pm UTC |
| Race Finish | February 21, 2017 12:29:58pm UTC |
| Outcome | No win (4 of 5) |
| Accuracy | 94.0% |
| 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. |