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  1. Vernal equinox | Definition, Dates, & Facts | Britannica

    The term vernal equinox refers to the 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 …

  2. Equinox - Wikipedia

    In the Northern Hemisphere, the March equinox is called the vernal or spring equinox while the September equinox is called the autumnal or fall equinox. In the Southern Hemisphere, the …

  3. VERNAL EQUINOX definition | Cambridge English Dictionary

    This year, the first day of spring, or the vernal equinox, arrives the earliest since the late 19th century.

  4. EquinoxDefinition, Facts, Dates

    Sep 4, 2024 · The equinox names reflect the seasons they herald in the Northern Hemisphere: Vernal (Spring) Equinox: Occurs around March 20, marking the beginning of spring in the …

  5. Vernal Equinox Definition - Intro to Astronomy Key Term | Fiveable

    The vernal equinox, also known as the spring equinox, is an astronomical event that occurs twice a year when the sun crosses the celestial equator, marking the beginning of spring in the …

  6. The Seasons, the Equinox, and the Solstices - National Weather Service

    The Equinox (Vernal & Autumnal) There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight …

  7. EQUINOX Definition & Meaning - Merriam-Webster

    In the northern hemisphere, the vernal equinox marks the first day of spring and occurs when the sun moves north across the equator. (Vernal comes from the Latin word ver, meaning "spring.")

  8. Spring Equinox - Date, Rituals & Meaning | HISTORY

    Mar 15, 2017 · The vernal equinox takes place in March each year and signals the start of spring in the Northern Hemisphere.

  9. What is Vernal Equinox? - The Franklin Institute

    Mar 16, 2021 · This year, the first day of spring, the Vernal Equinox, occurs on March 20th at 11:33 am in the Northern Hemisphere. Vernal Equinox occurs when the tilt of the Earth’s …

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  10. Equinox - Education

    Oct 19, 2023 · On Earth, there are two equinoxes every year: one around March 21 and another around September 22. Sometimes, the equinoxes are nicknamed the “ vernal equinox ” (spring …