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vernal equinox
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vernal equinox: Facts & Related Content

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Facts

Also Known As spring equinox • first point of Aries

Photos and Videos

seasonal configuration of Earth and Sun
What causes the seasons?
See All Videos and Images →

Related Topics and References

Topics

Related Quizzes and Features

Quiz
The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet
Space Odyssey
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
List
Calendar marking march 15th
22 Questions About Time and Timekeeping Answered
Demystified
Colorful winter sunset
What's the Difference Between a Solstice and an Equinox?