Description
Author: Niclas Olofsson, gurun@ts.umu.se"
"Original file from: Paul S. Hoffman"
"Pluto/Charon texture derived from Hubble pictures changed beyond recognition"
"3600:1 time scaling for rotation periods"
"Accurate tilt of axis (122.52 degrees). Note that both Pluto and Charon are rotating on the side"
"Accurate scaling (1:10, 000, 000 or 1 unit = 10, 000 km) for sizes and Charon's orbit