What Is the Equinox? And What Is the Solstice? - timeanddate.com
WEBThe 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. In the Southern Hemisphere, the names are the other way around.
March Equinox 2025 - timeanddate.com
WEBThe 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
September Equinox: When and What Is It? - timeanddate.com
WEBThe September equinox is the moment the Sun crosses the celestial equator —an imaginary line in the sky above Earth’s equator — from north to south. This happens on September 22, 23, or 24 in most years. 10 facts about the September equinox. Equinox Local Time & Date.
Equinox - Wikipedia
WEBA solar equinox is a moment in time when the Sun crosses the Earth's equator, which is to say, appears directly above the equator, rather than north or south of the equator. On the day of the equinox, the Sun appears to rise "due east" and set "due west". This occurs twice each year, around 20 March and 23 September. [a]
March equinox 2025: All you need to know - EarthSky
WEBThe 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 ...
When does fall start? Here's a visual guide to the autumnal equinox
WEBSep 19, 2023 · Equinoxes – when day and night are roughly equal – occur in September and March and mark the astronomical beginning of autumn and spring in the Northern Hemisphere, respectively. Solstices ...
Fall Equinox 2024: What It Is, How Earth and Sun Change the …
WEB2 days ago · Sep 20, 2024, 8:53 AM PDT. An illustration of earth during an equinox. Shayanne Gal/Business Insider. The first day of autumn, caused by the fall equinox, happens on Sunday, September 22, 2024 ...
Equinox - National Geographic Society
WEBOct 19, 2023 · As its name suggests, an equinox indicates equally illuminated hemispheres, with the solar terminator equally dividing Earth from north to south. (The solar terminator is the shadowed line indicating daylight and sunlight on a globe.) A true equinox would indicate 12 hours of both day and night.
Spring equinox 2024 today: Exactly what and when is it?
WEBEverything you need to know about the spring equinox 2024, including when it is, what it is and how it affects our planet.
2024 Fall Equinox: What to Know About the Start of Astronomical …
WEB1 day ago · Sept. 21, 2024, 12:00 p.m. ET. This Sunday, the autumnal equinox is upon us, and with it, a shift to shorter days, longer nights and the astronomical start of fall in the Northern Hemisphere ...