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.
The semi-major axis of an ellipse is the distance from the center to the farthest point.
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.
The orbital semi-major axis is an important parameter that indicates the size of the orbit.