Rishi_ (upsehu)

Race #3327

View Pit Stop page for race #3327 by upsehuGhost race

View profile for Rishi_ (upsehu)

Official speed 39.86 wpm (106.87 seconds elapsed during race)
Race Start September 21, 2017 8:31:01am UTC
Race Finish September 21, 2017 8:32:48am UTC
Outcome No win (4 of 5)
Accuracy 94.0%
Points 38.53
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.