基本解釋大自行恒星英漢例句雙語(yǔ)例句Its aim is to determine the right ascension and declination of the star, its parallax and proper motion.它要測(cè)定恒星的經(jīng)緯度，視差（即距離），和自行。High proper motion normally indicates a nearby star, so displaying proper motion labels is a quick way of spotting such stars.高自行通常表示是一顆近距離恒星，所以顯示自行標(biāo)簽是確準(zhǔn)此類恒星位置的快捷途徑。proper motion star更多例句詞組短語(yǔ)短語(yǔ)Common proper motion star 自行運(yùn)動(dòng)star proper motion 恒星自行proper motion star更多詞組專業(yè)釋義天文學(xué)大自行恒星