Hunter (hunter1109)

Race #265

View Pit Stop page for race #265 by hunter1109Ghost race

View profile for Hunter (hunter1109)

Official speed 84.95 wpm (50.15 seconds elapsed during race)
Race Start March 1, 2019 3:24:28pm UTC
Race Finish March 1, 2019 3:25:18pm UTC
Outcome No win (3 of 5)
Accuracy 99.0%
Points 82.11
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.