JupiterEditorial draft under review. Historical and cultural statements are attributed to their sources and wait for specialist review. If you know a better source, please tell us.
Astronomical observation
Jupiter is the largest planet in the solar system, more than twice as massive as all the other planets combined. It takes nearly twelve years to circle the Sun.
Historical astrological interpretation
In Hellenistic astrology and later Western traditions, Jupiter was associated with growth, generosity, and good judgment.
- Symbol
- Jupiter
- Day of the week
- Thursday
- Traditional ruling planet
- Sagittarius, Pisces
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Sources
- Solar System Exploration: planet facts, NASA Science (reference; accessed 2026-10-24).
- Hellenistic Astrology, Internet Encyclopedia of Philosophy (secondary; accessed 2026-10-24).
- Week (chronology), Encyclopaedia Britannica (reference; accessed 2026-10-24).
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