Obs. : 2017-01-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.257e+11
Venus      3.444e+11
Earth      3.280e+11
Mars       3.444e+11
Jupiter    3.185e+11
Saturn     3.217e+11
Uranus     3.359e+11
Neptune    3.444e+11
Pluto      3.344e+11