Obs. : 2017-08-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.705e+11
Venus      3.810e+11
Earth      3.760e+11
Mars       3.705e+11
Jupiter    3.716e+11
Saturn     3.649e+11
Uranus     3.831e+11
Neptune    3.760e+11
Pluto      3.629e+11