robloxplayer71499 (robloxplayer71499)

Race #7976

View Pit Stop page for race #7976 by robloxplayer71499Ghost race

View profile for robloxplayer71499 (robloxplayer71499)

Official speed 108.28 wpm (39.34 seconds elapsed during race)
Race Start January 8, 2020 2:46:06pm UTC
Race Finish January 8, 2020 2:46:45pm UTC
Outcome Win (1 of 5)
Opponents 2. dylan_9802 (96.62 wpm)
Accuracy 97.0%
Points 104.67
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.