Obs. : 2012-05-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.355e+11
Venus      4.426e+11
Earth      4.321e+11
Mars       4.756e+11
Jupiter    4.355e+11
Saturn     4.589e+11
Uranus     4.295e+11
Neptune    4.131e+11
Pluto      4.231e+11