Obs. : 2018-05-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.693e+11
Venus      3.731e+11
Earth      3.705e+11
Mars       3.676e+11
Jupiter    3.712e+11
Saturn     3.698e+11
Uranus     3.692e+11
Neptune    3.638e+11
Pluto      3.698e+11