2M1207b
Astronomical discovery
2M1207b is a planetary-mass object orbiting the brown dwarf 2M1207, in the constellation Centaurus, approximately 170 light-years from Earth. It is one of the first candidate exoplanets to be directly observed. Wikipedia
Discovered: April 2004
Orbits: 2M1207
Discovered by: Chauvin et al
Mean radius: 1.15 RJ
Composition by volume: hydrogen, water, carbon monoxide, helium
Detection method: Imaged
Mass: 5.5±0.5 MJ