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Nodal period : ウィキペディア英語版 | Nodal period
The nodal period of a satellite is the time between successive passages of a satellite through successive orbital nodes.〔(【引用サイトリンク】url=http://glossary.ametsoc.org/wiki/Nodal_period )〕 This applies to artificial, such as weather satellites, and natural satellites the moon. The nodal period of Earth's moon is 27.2122 days. == Near Earth-Satellites == The oblateness of the Earth has important effects of the orbits of near Earth-satellites. An expression for the nodal period () of a near circular orbit, such that the eccentricity (ε) is almost but not equal to zero, is: :
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Nodal period」の詳細全文を読む
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