Prime meridian - Honsho Shigosen (English spelling) Prime meridian
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The meridian of longitude 0°. It passes through the meridian circle of the Royal Observatory Greenwich in London, and was adopted as the origin of longitude for the whole world by international agreement in 1884. Even after the Royal Observatory was relocated, the origin has remained in its original location. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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経度0°の子午線。ロンドンのグリニッジ天文台の子午環の位置を通るもので，1884年の国際協定で全世界の経度の原点として採用された。グリニッジ天文台移転後も，原点はもとの場所に残されている。
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