March equinox - Wikipedia
The March equinox [7] [8] or northward equinox [9] is the equinox on the Earth when the subsolar point appears to leave the Southern Hemisphere and cross the celestial equator, heading northward as seen from Earth.
March Equinox 2025 - timeanddate.com
The March equinox is the moment the Sun crosses the celestial equator—an imaginary line in the sky above Earth’s equator—from south to north. This happens on March 19, 20, or 21 every year. 10 facts about the March equinox
March equinox 2025: All you need to know - EarthSky
The March equinox – aka the vernal equinox – marks the sun’s crossing above Earth’s equator, moving from south to north. Earth’s tilt on its axis is what causes this northward shift of ...
What Is the Equinox? And What Is the Solstice? - timeanddate.com
The March equinox happens sometime between March 19 and 21. The September equinox occurs sometime between September 21 and 24. In the Northern Hemisphere, the March equinox is also known as the spring or vernal equinox; the September equinox can be called the fall or autumnal equinox.
10 Things About the March Equinox - timeanddate.com
1. Also Autumnal Equinox. The March equinox is the vernal (spring) equinox in the Northern Hemisphere and the autumnal (fall) equinox in the Southern Hemisphere. 2. First Equinox of the Year. The second equinox, the September equinox, …
Spring Equinox ‑ Date, Rituals & Meaning | HISTORY
Mar 15, 2017 · In 2024, the vernal equinox occurred on March 19, signaling the start of spring in the Northern Hemisphere (and fall in the Southern Hemisphere). The Earth tilts at an angle of 23.5 degrees on...
Vernal equinox | Definition, Dates, & Facts | Britannica
Vernal 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. Learn more about the vernal equinox in …
Equinox – Definition, Facts, Dates - Science Notes and Projects
Sep 4, 2024 · Key Points. Definition and Occurrence: An equinox occurs twice a year, around March 20 and September 23, when the Earth’s equator passes directly under the Sun. Day and Night Length: While day and night are very nearly equal, daytime is slightly longer than nighttime at …
When Is Spring Equinox 2024? What Is It? - Parade
Mar 7, 2024 · When Is the Spring Equinox in 2024? In 2024, the spring equinox—AKA the first day of spring—occurs on Tuesday, March 19, 2024. So, who decides that? It's not a groundhog and it's not a...
Spring equinox 2023: Exactly when and what is it? - BBC Science …
The March equinox, also known as the vernal equinox, marks the beginning of astronomical spring in the northern hemisphere. This phenomenon has been observed – and celebrated – for thousands of years, and has important implications for astronomy and agriculture, as well as cultural traditions. But when exactly is the spring equinox?