Obs. : 2018-08-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.450e+11
Venus      3.430e+11
Earth      3.505e+11
Mars       3.406e+11
Jupiter    3.441e+11
Saturn     3.413e+11
Uranus     3.533e+11
Neptune    3.488e+11
Pluto      3.391e+11