Dermott's Law


Dermott’s law is an empirical formula for the orbital period of major satellites orbiting planets in the Solar System. It was identified by the celestial mechanics researcher Stanley Dermott in the 1960s and takes the form of the equation shown here.

Related formulas


Tnorbital period of the nth satellite (day)
T0order of days (day)
Cconstant of the satellite system in question (dimensionless)
nn=1,2,3,4... (dimensionless)