James (karonar)

Race #4257

View Pit Stop page for race #4257 by karonarGhost race

View profile for James (karonar)

Official speed 90.90 wpm (46.86 seconds elapsed during race)
Race Start December 21, 2018 3:25:08pm UTC
Race Finish December 21, 2018 3:25:55pm UTC
Outcome Win (1 of 5)
Opponents 2. pecefulpro (66.06 wpm)
Accuracy 98.0%
Points 87.87
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.