PSR B1257+12 an gano shi ne daga masanin tauraron dan adam na Poland Aleksander Wolszczan a ranar 9 ga Fabrairun 1990 ta amfani da na'urar rediyo na Arecibo. Yana da millisecond pulsar, wani nau'in tauraron neutron, tare da lokacin juyawa na 6.22 milliseconds (9,650 rpm), kuma an gano cewa yana da rashin daidaituwa a cikin lokacin bugun jini, wanda ya haifar da bincike game da dalilin bugun jini mara kyau. A cikin 1992 Wolszczan da Dale Frail sun wallafa wani shahararren takarda game da farkon tabbatar da ganowar taurari a waje da tsarin hasken rana. Ta amfani da ingantattun hanyoyin an sami ƙarin duniya guda ɗaya da ke kewaya wannan pulsar a cikin 1994. Tambaya: Wanene ya gano BPSR1257+12?
Aleksander Wolszczan Ƙarƙashin ƙasa