《明史·志·卷七》
古今历家根据交食的分数及交泛等，测定黄道白道相距大约五度。
古今历家以交食分数及交泛等，测量定黄白二道相距约五度。
Ancient and modern astronomers have determined that the distance between the ecliptic and the white path is about five degrees based on the fractions of eclipses and other appearances.