Obs. : 2016-08-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.715e+11
Venus      3.715e+11
Earth      3.875e+11
Mars       3.868e+11
Jupiter    3.715e+11
Saturn     3.868e+11
Uranus     3.998e+11
Neptune    3.945e+11
Pluto      3.834e+11