Obs. : 2007-12-22
Planet     Ly alpha
Mercury    4.594e+11
Venus      4.382e+11
Earth      4.303e+11
Mars       4.312e+11
Jupiter    4.594e+11
Saturn     4.213e+11
Uranus     4.456e+11
Neptune    4.489e+11
Pluto      4.520e+11