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Gemini Facts

Tadashi

Written by Tadashi

Modified & Updated: 23 Sep 2023

Sherman Smith

Reviewed by Sherman Smith

Expert Verified Editorial Guidelines
Gemini, the twins Castor and Pollux, is the third sign of the Zodiac. People born between May 20th and June 21st have this astrological sign

The zodiac Gemini is most commonly associated with astrology. But there’s more to this constellation than just fortune-telling! Both legends and science have their own associations with Gemini, and many Geminis have also earned their own places in history. Learn more with these 50 Gemini facts!

Modern magic witchcraft card with astrology Gemini zodiac sign.
Image from Adobe Stock
Quick Facts
Essential Facts
Interesting Facts
  1. Seventeen stars traditionally make up the constellation of Gemini.
  2. Modern astronomers have since discovered that Gemini actually includes 85 stars.
  3. They have also discovered that eight of Gemini’s stars have planets orbiting them.
  4. Pollux makes up the brightest star in Gemini, with a magnitude of 1.14.
  5. Astrologers associate Gemini with people born between May 21 and June 21.
  1. Aristotle first mentioned scientific observations of what would become Gemini in the 4th century B.C.
  2. The Greek astronomer Ptolemy first documented the modern constellation of Gemini in the 2nd century B.C.
  3. Changes in Earth’s axial orientation in the 1st century A.D. caused the Sun to start rising in Gemini every summer solstice.
  4. Philippe Loys de Cheseaux discovered the M35 cluster in Gemini in 1745.
  5. William Herschel discovered Uranus in 1781 while observing Gemini.
  6. J.R. Hind discovered the dwarf nova U Geminorum in 1855.
  7. Clyde Tombeau similarly discovered Pluto in 1930 while observing Gemini.
  8. Another change in Earth’s orientation in 1990 moved the sunrise on the summer solstice from Gemini to Taurus.
  9. Scientists replicated and confirmed Aristotle’s observations also in 1990.
  10. They later discovered an exoplanet around the star Pollux in Gemini in 2006.
  1. Gemini literally means “twins” in Latin.
  2. Astrologers associate Gemini with the classical element of air.
  3. They also associate it with the planet, Mercury.
  4. Gemini supposedly weakens the influence of the planet Jupiter.
  5. Similarly, the Moon weakens Gemini’s influence when passing through the constellation towards the Southern Hemisphere.
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