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PSR B1620−26 b

Astronomical discovery
PSR B1620-26 b is an exoplanet located approximately 12,400 light-years from Earth in the constellation of Scorpius. It bears the unofficial nicknames "Methuselah" and "the Genesis planet" due to its extreme age. Wikipedia
Radius: 40,327 mi
Discovered: May 30, 1993
Distance to Earth: 12,400 light years
Mass: 2.5 (± 1) MJ
Orbital period (sidereal): 36,525 d; ~100 y