释义 |
DictionarySeeautumnal equinoxfirst point of Libra
first point of Libra See first point of Aries.first point of Libra[¦fərst ¦pȯint əv ′lē·brə] (astronomy) autumnal equinox first point of LibraThe point of intersection of the ecliptic and the celestial equator (equinoctial) when the sun is moving from the north to the south direction. It is denoted by the symbol λ. Also called autumnal equinox. * See first point of Aries and ecliptic.LegalSeeEquinoxThesaurusSeeequinox |