PDA

View Full Version : Second Smallest Exoplanet Found



Fraser
2010-Jan-07, 11:00 PM
Planet hunters have detected an extrasolar planet that is only four times the mass of Earth, making it the second smallest exoplanet ever discovered. Astronomers using the 10-meter Keck I telescope at the Keck Observatory in Hawaii found the un-poetically named HD156668b, which has a mass of roughly 4.15 Earth masses. It orbits [...]

More... (http://www.universetoday.com/2010/01/07/second-smallest-exoplanet-found/)