Obs. : 2016-07-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.874e+11
Venus      3.874e+11
Earth      4.369e+11
Mars       4.399e+11
Jupiter    3.964e+11
Saturn     4.378e+11
Uranus     3.979e+11
Neptune    4.080e+11
Pluto      4.337e+11