Description: 在天文學中，“阿波羅”有兩種含義。第一個是指阿波羅計劃，這一計劃將人類首次送上了月球。這些任務大多由土星五號火箭提供動力。總共發射了14次帶編號的任務（阿波羅4至17號），其中11次是載人任務，9次前往月球，6次成功登月，另有3次繞月飛行。

另外，“阿波羅”還指一組近地小行星，因小行星(1862)阿波羅而得名。這組小行星的特點是半長軸大於地日距離（即1個天文單位），近日點距離小於1個天文單位。這意味著在軌道運行過程中，阿波羅小行星從地球軌道內側運行到外側，儘管它們很少接近地球本身。

Related Terms:

• 天文單位
• 月球
• 近地天體
• 近日點
• 火箭
• 航天器
• 半長軸

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

This is an automated transliteration of the simplified Chinese translation of this term

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