High Quality Content by WIKIPEDIA articles! The Titius–Bode law (sometimes termed just Bode`s law) is a hypothesis that the bodies in some orbital systems, including the Sun`s, orbit at semi-major axes in a function of planetary sequence. The hypothesis correctly predicted the orbits of Ceres and Uranus, but failed as a predictor of Neptune`s orbit. It is named for Johann Daniel Titius and Johann Elert Bode.