Apogee - apogee (English spelling)
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The point at which the moon or an artificial celestial body revolving around the earth is farthest from the earth in its orbit. The apogee of the moon is 407,000 km. Due to the action of the sun, the position of the moon's apogee moves forward around the celestial sphere in about 8.85 years. (→ Perigee ) Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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月や，地球を回る人工天体などが公転軌道上で地球から最も遠くなる点。月の場合の遠地点の距離は 40万 7000km。太陽による摂動作用のため月の遠地点の位置は天球上を約 8.85年で順行1周する。 (→近地点 )
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
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