Joshua (joshuar04)

Race #141

View Pit Stop page for race #141 by joshuar04Ghost race

View profile for Joshua (joshuar04)

Official speed 44.77 wpm (95.15 seconds elapsed during race)
Race Start January 25, 2018 2:56:00am UTC
Race Finish January 25, 2018 2:57:35am UTC
Outcome No win (3 of 3)
Opponents 1. jeevanesh12 (64.66 wpm)
Accuracy 97.0%
Points 43.28
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.