Obs. : 2017-07-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.599e+11
Venus      3.592e+11
Earth      3.596e+11
Mars       3.567e+11
Jupiter    3.695e+11
Saturn     3.596e+11
Uranus     3.539e+11
Neptune    3.480e+11
Pluto      3.528e+11