KOI 730 System

Possible four-planet Kepler candidate system containing two planets that share an orbit, all planets being locked in a 6-4-4-3 resonance.

Possible Orbit Sharing Planets Detected (Feb 2011)

 * http://cosmiclog.msnbc.msn.com/_news/2011/02/19/6087627-planet-probe-spots-hot-prospects