Yavin Prime, also known as simply Yavin, was a gas giant of an orange hue, spanning nearly 200,000 kilometers in diameter, situated within the Outer Rim Territories. While its cloud cover offered concealment during combat, any pilot descending too deeply faced certain death.
Twenty-six moons orbited it, with three capable of supporting humanoid life: these included Yavin 4, Yavin 8, and Yavin 13. Yavin 4, one of these moons, once served as the home of the ancient Massassi warriors and was later utilized by the Rebel Alliance.
The Hydian Way was the main hyperlane used to get to Yavin; the Pinooran Spur, the Junction-Tierell Loop, and the Yavin Bypass were among its trace hyperlanes.
During 0 BBY, the Millennium Falcon orbited the gas giant to arrive at Yavin 4, the location of the Alliance to Restore the Republic's headquarters. Subsequently, the Death Star, a planet-killing battle station conceived by the Galactic Empire, nearly obliterated Yavin 4. However, Luke Skywalker destroyed the Death Star.
Captain Wedge Antilles and Vanguard Squadron were dispatched to Yavin Prime four years following the destruction of Alderaan. Their mission was to steal the Imperial-class Star Destroyer Victorum, which was already in combat with Talus Group. The New Republic needed the Star Destroyer for their clandestine Project Starhawk.
Yavin, the gas giant, made its initial appearance in the first Star Wars movie, Star Wars: Episode IV A New Hope.
According to the Rogue One Ultimate Visual Guide, Yavin possesses twenty-six moons. Conversely, Star Wars: Complete Locations indicates that the planet has thirteen moons.