释义 |
equinoctial system of coordinates equinoctial system of coordinates[‚ē·kwə′näk·shəl ¦sis·təm əv kō′ȯrd·ən·əts] (astronomy) equatorial system equatorial system A set of celestial coordinates based on the celestial equator as the primary great circle. It is usually expressed as declination and an hour angle or a sidereal hour angle. Also called an equinoctial system of coordinates or a celestial equator system of coordinates. See also celestial equator. |