# Titius-Bode Law

The Titius-Bode Law is a prescription for calculating planetary distances, made famous by Johann Bode but first pointed out in 1766 by the German
mathematician Johann Titius (1729–1796). It is that the distance to
the *n*th planet is 0.4 + (0.3)^{n} astronomical units AU. The Titius-Bode Law, also known simple as **Bode's Law** works surprisingly well out to Uranus but then breaks down.