Obs. : 2016-05-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.043e+11
Venus      4.044e+11
Earth      4.055e+11
Mars       4.055e+11
Jupiter    4.048e+11
Saturn     4.055e+11
Uranus     4.038e+11
Neptune    3.988e+11
Pluto      4.027e+11