Obs. : 2008-04-26 Planet Ly alpha Mercury 3.675e+11 Venus 3.688e+11 Earth 3.830e+11 Mars 3.693e+11 Jupiter 3.660e+11 Saturn 3.772e+11 Uranus 3.650e+11 Neptune 3.626e+11 Pluto 3.672e+11