…In addition, with normal launch methods, it is not possible to achieve an orbit with an inclination equal to or less than the latitude of the launch point. The orbital period T of an elliptical orbit (including a circular orbit) is given by, and this period, which corresponds to the first cosmic velocity, is about 84 minutes. In particular, a circular orbit with a period T of 1 day is called a geosynchronous orbit, and among them, an orbit with an inclination of 0 degrees is usually called a geostationary orbit (Figure 2). … *Some of the terminology that refers to "orbital period" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…なお,通常の打上げ方式では,発射点緯度以下の軌道傾斜角をもつ軌道は達成できない。 楕円軌道(円軌道を含む)の軌道周期Tは,で与えられ,第一宇宙速度に対応するこの周期は約84分である。とくに周期Tが1日の円軌道を地球同期軌道geosynchronous orbitといい,その中で,軌道傾斜角0度の軌道を通常,静止軌道と呼んでいる(図2)。… ※「軌道周期」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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