prime (greenwich) meridian 中文意思是什麼
prime (greenwich) meridian
解釋
本初子午線-
The prime meridian, which runs through greenwich in south - east london, became the basis for the world ' s time keeping in 1884 after the first astronomer royal, john flamstead, calculated that the earth rotated on its axis once every 24 hours
1884年,首位皇家天文學家約翰法蘭姆斯坦算出地球每隔24小時繞軸自轉1次,使得通過倫敦東南格林威治的本初子午線成為全球計時基準。 -
Lines of longitude are measured in degrees east or west of the prime meridian, which runs through greenwich in london, while lines of latitude are given in degrees north of south of the equator
穿過倫敦格林尼治的經線叫做本初子午線( 0度經線) ,經度以東西距離這條經線多少度來計算,而緯度以離赤道南北多少度來計算。
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