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PSR B1257+12

Sun
PSR B1257+12, previously designated PSR 1257+12, alternatively designated PSR J1300+1240, is a millisecond pulsar located 2,300 light-years from the Sun in the constellation of Virgo, rotating at about 161 times per second. It is also named Lich,... Wikipedia
Radius: 6.2137 mi
Surface temperature: 28,860 K
Mass: 2.784 × 10^30 kg (1.4 M☉)
Constellation: Virgo
Distance to Earth: 2,316 light years
Age: 1–3 Gyr
Declination: +12° 40′ 57″