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  • Equinox - Wikipedia
    The equinoxes are the only times when the solar terminator (the "edge" between night and day) is perpendicular to the equator As a result, the northern and southern hemispheres are equally illuminated
  • Equinox | Definition, Dates, Facts | Britannica
    On March 20 or 21, the Sun moves north across the celestial equator, marking the vernal equinox, the beginning of spring in the Northern Hemisphere, and the autumnal equinox, the beginning of autumn in the Southern Hemisphere
  • What Are the Equinoxes and Why Do They Matter?
    The equinoxes are among the most significant celestial events in the Earth’s annual journey around the sun Occurring twice a year, around March 20th and September 23rd, they mark the moments when day and night are of nearly equal length across the globe
  • Embracing the Equinox - NASA Science
    But what exactly is an equinox? An equinox occurs twice every year, in March and September In 2026, the equinoxes will occur on March 20, at exactly 14:46 UTC (or 7:46 AM EDT), and again on September 23, at 00:05 UTC (or September 22, 2026, at 5:05 PM PDT)
  • Equinox – Definition, Facts, Dates
    What Is an Equinox? An equinox occurs when the Earth’s equator aligns with the Sun, making the Sun appear directly overhead at the equator On the equinox, the Sun rises due east at the equator, and sets due west This alignment results in nearly equal daylight and darkness across the globe
  • The Seasons, the Equinox, and the Solstices - National Weather Service
    For a complete listing of the dates of the winter and summer solstices and spring and fall equinoxes through 2100, check out this site from the U S Naval Observatory
  • Equinox - Simple English Wikipedia, the free encyclopedia
    There are two equinoxes each year Equinox can also mean either of the two days when this happens On these days, the nights are equal in length at latitudes L° North and L° South The word equinox comes from two Latin words meaning "equal" and "night"
  • The Equinoxes and the Solstices - timeanddate. com
    There are only two moments each year when neither pole points toward the Sun, and the Sun lies directly above Earth’s equator These moments are the equinoxes The March equinox happens sometime between March 19 and 21 The September equinox occurs sometime between September 21 and 24
  • The Seasons, the Equinox, and the Solstices
    For a complete listing of the dates of the winter and summer solstices and spring and fall equinoxes through 2025, check out this site from the U S Naval Observatory
  • What is an equinox? | Space
    Equinoxes occur twice a year when the sun is directly above the equator, and signal herald the beginning of spring and autumn





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