why... (fourshademk2)

Race #3678

View Pit Stop page for race #3678 by fourshademk2Ghost race

View profile for why... (fourshademk2)

Official speed 115.29 wpm (36.95 seconds elapsed during race)
Race Start November 6, 2017 11:53:16am UTC
Race Finish November 6, 2017 11:53:53am UTC
Outcome No win (2 of 4)
Opponents 1. innoj (122.90 wpm)
3. jackracer23 (82.53 wpm)
Accuracy 99.0%
Points 111.44
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.