Question

what is the equinox?

Answer 1

Answer:

the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of approximately equal length (about 22 September and 20 March

Answer 2

Answer:

▪︎An equinox is commonly regarďed as the instànt of time when the plane of Earth's equaþtor passes through the geomètric center of the Sun's disk. This ocçurs twiçe each year, around 20 March and 23 September. In other words, it is the momènt at which the center of the visible Sun is direçtly above the eqùator.