Year | Jupiter | Saturn | Uranus | Neptune |
---|---|---|---|---|
2009[1] | 0.32° | 0.93° | 1.02° | 0.72° |
142400[2] | 0.48° | 0.79° | 1.04° | 0.55° |
168000[3] | 0.23° | 1.01° | 1.12° | 0.55° |
The invariable plane of a planetary system, also called Laplace's invariable plane, is the plane passing through its barycenter (center of mass) perpendicular to its angular momentum vector.
meanplane
was invoked but never defined (see the help page).