… Keplerian elements, for celestial bodies orbiting the Sun, consist of the following six constants (see figure): (1) semimajor axis a , (2) eccentricity e , (3) inclination i , (4) longitude Ω of ascending node, (5) argument of perihelion ω, and (6) time and date of perihelion T. In the motion of the Moon and artificial satellites, ω is called the argument of perigee, and T is called the time and date of the perigee passage. … *Some of the terminology that mentions "perihelion argument" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… ケプラー要素は,太陽を公転する天体の場合には,次の6個の定数から成る(図)。(1)軌道半長径a,(2)軌道の離心率e,(3)軌道傾斜i,(4)昇交点黄経Ω,(5)近日点引数ω,(6)近日点通過の日時T。月や人工衛星の運動ではωは近地点引数,Tは近地点通過の日時と呼ばれる。… ※「近日点引数」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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