View Full Version : Smallest Exo-planet Found

2008-Apr-10, 02:00 PM
We’re getting closer to finding an Earth-like planet out there in the universe. Spanish astronomers announced the discovery of the smallest exo-planet found to date, located 30 light years from earth. "I think we are very close, just a few years away, from detecting a planet like Earth," team leader Ignasi Ribas said at [...]

More... (http://www.universetoday.com/2008/04/10/smallest-exo-planet-found/)

2008-Apr-10, 02:40 PM
Notice that the method of discovery involved (perturbations in the orbits of already known planets) provides actual mass, not minimal mass, which you get with radial velocity method. Even if exact masses of the planets being perturbed are unknown.

2008-Apr-10, 03:27 PM
Really? Wow, that's pretty neat.