Obs. : 2016-07-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.070e+11
Venus      4.132e+11
Earth      3.774e+11
Mars       3.845e+11
Jupiter    3.963e+11
Saturn     3.808e+11
Uranus     3.865e+11
Neptune    3.685e+11
Pluto      3.774e+11