Obs. : 2016-05-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.003e+11
Venus      4.016e+11
Earth      4.087e+11
Mars       4.087e+11
Jupiter    4.050e+11
Saturn     4.088e+11
Uranus     4.020e+11
Neptune    3.996e+11
Pluto      4.066e+11