Obs. : 2019-02-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.518e+11
Venus      3.533e+11
Earth      3.549e+11
Mars       3.444e+11
Jupiter    3.511e+11
Saturn     3.533e+11
Uranus     3.457e+11
Neptune    3.545e+11
Pluto      3.533e+11