Sailor Moon series
In the Sailor Moon metaseries, Jupiter was the home planet of and the planet that was protected by Sailor Jupiter.
In the manga, Io Castle was known to orbit the planet, and it was the castle of Princess Jupiter.
Jupiter, out of all the planets, has the most moons, with at least 67 of them. The four major ones are Io, Europa, Ganymede, and Callisto. Jupiter is also the biggest planet in the Milky Way galaxy.
Jupiter is the ruling planet over the Zodiac symbol Sagittarius (Makoto Kino was born under the sign of Sagittarius). Jupiter is also known as a "great teacher" in some religions, and is also associated with growth, prosperity, good fortune, education, freedom and the law.