Obs. : 2018-08-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.671e+11
Venus      3.648e+11
Earth      3.724e+11
Mars       3.701e+11
Jupiter    3.631e+11
Saturn     3.621e+11
Uranus     3.870e+11
Neptune    3.697e+11
Pluto      3.705e+11