Kepler's Transiting Multiple-Planet Systems
Channel: dfabrycky
Date: 2012-01-26

These are the known planetary systems with more than one planet transiting.  They were all discovered by NASA's Kepler mission.  The relative sizes of the orbits are correct, and the relative sizes of the planets are correct, but the scales differ.  The positions are as they would be if all these planets were on circular orbits in the same plane.  The timespan shown is the first 1.5 years of science data from Kepler, and the spacecraft's perspective is from the "bottom" of the screen.