Obs. : 2009-04-01
Planet     Ly alpha
Mercury    3.247e+11
Venus      3.229e+11
Earth      3.163e+11
Mars       3.178e+11
Jupiter    3.044e+11
Saturn     3.163e+11
Uranus     3.178e+11
Neptune    3.044e+11
Pluto      3.025e+11