Translation guide
The semi-major axis is a technical term from geometry and astronomy. In Japanese, it is expressed using the standard mathematical term 半長軸 (はんちょうじく). This guide covers the primary term and related expressions.
The half of the longest diameter of an ellipse, or the average orbital distance in astronomy.
Standard technical term for semi-major axis in mathematics, physics, and astronomy.
楕円の半長軸は、中心から最も遠い点までの距離です。
The semi-major axis of an ellipse is the distance from the center to the farthest point.
惑星の軌道半長軸は、その公転周期と関係があります。
The semi-major axis of a planet's orbit is related to its orbital period.
Specifically refers to the semi-major axis of an orbit, common in astronomy.
軌道半長軸は、軌道の大きさを表す重要なパラメータです。
The orbital semi-major axis is an important parameter that indicates the size of the orbit.