Pluto and Charon
Inclination of Pluto's
equator
to its orbital plane
to its orbital plane
About 112 degrees (between 98° and 122°)
Pluto's
rotation period
6.387 days
retrograde
retrograde
Charon's
rotation period
6.387 days
Charon's
orbital period
6.387 days
Charon's
average distance from Pluto
19,130 km
(11,889 mi)
(11,889 mi)
Last decade Charon’s orientation carried it through a number
of eclipses,
giving us good sizes and even maps for the 2 bodies.