About the Sagittarius zodiac sign
Sagittarius — the Archer — is the mutable fire sign of the zodiac, ruled by Jupiter. Sagittarius energy is expansive, exploratory, and oriented toward meaning over routine. Famous Sagittarius celebrities include Taylor Swift, Brad Pitt, Walt Disney, Jay-Z, and Britney Spears. The Sagittarius signature is a wanderer's optimism and an honesty that sometimes lands harder than intended.
How Sagittarius sun signs are determined
A Sagittarius Sun sign means someone was born when the Sun was in Sagittarius (November 22 - December 21). Jupiter — the ruler — shapes how that expansive energy expresses; the ninth house (philosophy, travel, higher mind) is also central.