摘要:"巴纳得环[星云]","Barnard'sloop""巴纳德星","Barnard'sstar""巴内特效应","Barnetteffect""棒旋星系","barredspiral[galaxy]""巴林杰陨石坑","Barringercrater""引力中心;质量中心","barycenter""质心坐标","...[阅读全文]