|Duration (tropical, western)||May 21 – June 21 (2023, UT1)|
Gemini (♊︎) (// JEM-in-eye  Greek: Δίδυμοι, romanized: Dídymoi, Latin for "twins") is the third astrological sign in the zodiac. Under the tropical zodiac, the sun transits this sign between about May 21 to June 21. Gemini is represented by the twins, Castor and Pollux, known as the Dioscuri in Greek mythology. It's known as a positive, mutable sign.
In Babylonian astronomy, the stars Pollux and Castor were known as the Great Twins. Their names were Lugal-irra and Meslamta-ea, meaning "The Mighty King" and "The One who has arisen from the Underworld". Both names are titles of Nergal. Also could be referencing Zeus and Hades.
In Greek mythology, Gemini is associated with the myth of Castor and Pollux. Pollux was the son of Zeus, who seduced Leda, while Castor was the son of Tyndareus, the king of Sparta and Leda's husband. When Castor died, because he was a mortal, Pollux begged his father Zeus to give Castor immortality, which was done through uniting them together in the heavens.
In popular culture
From the medieval Georgian manuscript of a 12th-century astrological treatise
Ornamentation from an altar cloth from 13th-century Germany. The two figures are depicted with the heads of dogs.
Gemini (al-Gawzaa) depicted in the 14th/15th-century Arabic astrology text Book of Wonders
Gemini by Willem Blaeu, 1602
White and Black Geminis by Arija, 1904
- Astronomical Applications Department (2011). Multiyear Computer Interactive Almanac. 2.2.2. Washington DC: US Naval Observatory. Longitude of Sun, apparent geocentric ecliptic of date, interpolated to find time of crossing 0°, 30°....
- "English Oxford Living Dictionary". Oxford University Press. 2018. Archived from the original on September 20, 2016.
- "Gemini". Encyclopedia Britannica. n.d. Retrieved January 3, 2022.
- "Humans in Space". National Air and Space Museum. Smithsonian. n.d. Archived from the original on June 1, 2016. Retrieved April 20, 2022.
- Unicode Consortium (2015). "Unicode 8.0 Character Code Charts" (PDF). Retrieved April 21, 2016.
- White, Gavin (2008). Babylonian Star-lore. Solaria Pubs.