Obs. : 2011-03-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.379e+11
Venus      4.375e+11
Earth      3.804e+11
Mars       4.571e+11
Jupiter    4.498e+11
Saturn     3.765e+11
Uranus     4.498e+11
Neptune    4.469e+11
Pluto      3.921e+11