Elvis (tooreesss)

Race #712

View Pit Stop page for race #712 by tooreesssGhost race

View profile for Elvis (tooreesss)

Official speed 45.49 wpm (93.65 seconds elapsed during race)
Race Start February 20, 2019 1:00:30pm UTC
Race Finish February 20, 2019 1:02:04pm UTC
Outcome No win (4 of 5)
Accuracy 94.0%
Points 43.97
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.