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OGLE-2005-BLG-390Lb

Astronomical discovery
OGLE-2005-BLG-390Lb is a super-Earth exoplanet orbiting OGLE-2005-BLG-390L, a star 21,500 ± 3,300 light-years from Earth near the center of the Milky Way, making it one of the most distant planets known. Wikipedia
Temperature: 50 K (−220 °C; −370 °F)
Radius: 6,690.3 mi
Orbital period: 3,500 days
Discovered: August 10, 2005
Discoverer: Penny Sackett
Distance to Earth: 21,530 light years
Mass: 5.5+5.5; −2.7 ME