Obs. : 2017-11-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.666e+11
Venus      3.649e+11
Earth      3.716e+11
Mars       3.657e+11
Jupiter    3.646e+11
Saturn     3.666e+11
Uranus     3.669e+11
Neptune    3.683e+11
Pluto      3.717e+11