noun
ecliptic coordinates
Astronomical coordinate system based on the ecliptic plane; used in positional astronomy and celestial mechanics.
黄道座標は、太陽系内の天体の位置を表すのに使われる。
Ecliptic coordinates are used to express the positions of celestial bodies within the solar system.
Equatorial coordinates, based on the celestial equator, are more common for general star charts; ecliptic coordinates are specialized for solar system objects.
Compound of 黄道 (ecliptic) and 座標 (coordinates). The term is a direct translation of the Western astronomical concept.