Assertion: autumnal equinox | /r/HasProperty | one point
Facets:
value: in time
type: TEMPORAL
Source sentences:
text: The September equinox is one point in time commonly used to determine the length of the tropical year.
text: Autumnal equinox, two moments in the year when the Sun is exactly above the Equator and day and night are of equal length; also, either of the two points in the sky where the ecliptic (the Sun’s annual pathway) and the celestial equator intersect.