The day on which the plane of Earth's equator passes through the center of the Sun is called:
Answer Equinox
An equinox is often referred to as the instant of time when the Sun’s direct rays cross the celestial equator. This event occurs twice each year, around the 20th of March and the 23rd of September.
Asked by Rachel Bortles · Last updated 5 years ago · 2.9K views · SOURCE
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