Obs. : 2011-07-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.856e+11
Venus      4.044e+11
Earth      4.108e+11
Mars       4.059e+11
Jupiter    4.063e+11
Saturn     3.977e+11
Uranus     3.967e+11
Neptune    4.075e+11
Pluto      4.137e+11