Obs. : 2016-10-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.883e+11
Venus      3.823e+11
Earth      4.043e+11
Mars       4.009e+11
Jupiter    3.883e+11
Saturn     3.829e+11
Uranus     4.080e+11
Neptune    4.144e+11
Pluto      4.009e+11