artist rendition
Artist's concept

Kepler-11 is the fullest, most compact planetary system yet discovered beyond our own. NASA's Kepler space telescope discovered six planets made of a mix of rock and gases orbiting a yellow dwarf star, located approximately 2,000 light-years from Earth. The orbits of the five inner planets in the Kepler-11 planetary system are much closer together than any of the planets in our solar system. If placed inside our solar system, Kepler-11g would orbit between Mercury and Venus, and the other five planets would orbit between Mercury and our sun. The innermost planet, Kepler-11b, is 10 times closer to its star than Earth is to the sun. All six planets are larger than Earth, with the largest comparable in size to Uranus and Neptune.

PLANET TYPE
Terrestrial
DISCOVERY DATE
2010
MASS
1.9 Earth
PLANET RADIUS
1.8 x Earth
ORBITAL RADIUS
0.091 AU
ORBITAL PERIOD
10.3 days
ECCENTRICITY
0.045
DETECTION METHOD
Transit