Question

what is known as equinoxes​

Answer 1

Answer:

An equinox is an event in which a planet's subsolar point passes through its Equator. ... Sometimes, the equinoxes are nicknamed the “vernal equinox” (spring equinox) and the “autumnal equinox” (fall equinox), although these have different dates in the Northern and Southern Hemispheres.

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Answer 2

Answer:

An equinox is commonly regarded as the instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk. This occurs twice each year, around 20 March and 23 September. In other words, it is the moment at which the center of the visible Sun is directly above the equator.

Source - Wikipedia

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