Obs. : 2016-07-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.955e+11
Venus      4.007e+11
Earth      3.774e+11
Mars       3.847e+11
Jupiter    3.848e+11
Saturn     3.822e+11
Uranus     3.942e+11
Neptune    3.728e+11
Pluto      3.774e+11