English Dictionary

mean planet

名詞

(astronomy, celestial mechanics) An imaginary celestial body (corresponding to another, real, orbiting one) which orbits with constant speed along an auxiliary circle (a circle which shares a diameter with the major axis of the elliptical orbit of the corresponding real celestial body), such that its position coincides with the position of the corresponding, real celestial body when that body passes through periapsis.

日本語の意味

天体力学において、実際の惑星の楕円軌道に対応する補助円上を一定速度で公転する仮想の天体。実際の惑星が近日点を通過する際にその位置と一致するように計算上設定される参考天体。

To simplify the comet's motion, the astronomer modeled it as a mean planet that orbits at constant speed on the auxiliary circle, coinciding with the comet's position at periapsis.

彗星の運動を単純化するために、天文学者はそれを補助円上を一定速度で移動し、実際の天体が近日点を通過する時に位置が一致する架空の天体としてモデル化した。

意味（1）

(astronomy, celestial mechanics) An imaginary celestial body (corresponding to another, real, orbiting one) which orbits with constant speed along an auxiliary circle (a circle which shares a diameter with the major axis of the elliptical orbit of the corresponding real celestial body), such that its position coincides with the position of the corresponding, real celestial body when that body passes through periapsis.

mean planets （ plural ）