Obs. : 2018-08-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.858e+11
Venus      3.059e+11
Earth      2.963e+11
Mars       2.963e+11
Jupiter    3.050e+11
Saturn     2.988e+11
Uranus     2.848e+11
Neptune    2.878e+11
Pluto      2.968e+11