Obs. : 2017-08-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.929e+11
Venus      3.909e+11
Earth      3.735e+11
Mars       3.890e+11
Jupiter    3.663e+11
Saturn     3.733e+11
Uranus     3.777e+11
Neptune    3.735e+11
Pluto      3.790e+11