Patrick (araex)

Race #801

View Pit Stop page for race #801 by araexGhost race

View profile for Patrick (araex)

Official speed 113.71 wpm (37.46 seconds elapsed during race)
Race Start January 16, 2019 1:13:00am UTC
Race Finish January 16, 2019 1:13:38am UTC
Outcome Win (1 of 5)
Accuracy 99.0%
Points 109.92
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.