Saturn's moon Phoebe. Phoebe (FEE-bee) is one of Saturn's most intriguing satellites, orbiting at a distance of 12,952,000 kilometers from the planet, almost four times the distance from Saturn than its nearest neighbor, the moon Iapetus. Phoebe and Iapetus are the only major moons in the Saturnian system that do not orbit closely to the plane of Saturn's equator. Phoebe has a diameter of about 220 kilometers. It's orbit is retrograde, i.e. it orbits Saturn opposite to Saturn's rotation.