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PSR B1257+12 C

Astronomical discovery
PSR B1257+12 C, alternatively designated PSR B1257+12 d and also named Phobetor, is a super-Earth exoplanet orbiting the pulsar Lich approximately 2,315 light-years away from Earth in the constellation of Virgo. It was one of the first planets... Wikipedia
Discovered: January 22, 1992
Mean radius: ~1.5 R🜨
Orbits: PSR B1257+12
Detection method: Pulsar Timing
Mass: 3.9 (± 0.2) ME
Star: Lich