Obs. : 2015-12-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.993e+12
Venus      1.922e+12
Earth      1.818e+12
Mars       1.906e+12
Jupiter    1.869e+12
Saturn     1.919e+12
Uranus     1.882e+12
Neptune    1.970e+12
Pluto      1.981e+12