Obs. : 2008-04-21
Planet     Ly alpha
Mercury    3.637e+11
Venus      3.614e+11
Earth      3.781e+11
Mars       3.829e+11
Jupiter    3.532e+11
Saturn     3.862e+11
Uranus     3.583e+11
Neptune    3.491e+11
Pluto      3.560e+11