Obs. : 2015-05-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.781e+11
Venus      4.830e+11
Earth      5.024e+11
Mars       4.742e+11
Jupiter    4.903e+11
Saturn     5.046e+11
Uranus     4.637e+11
Neptune    4.596e+11
Pluto      4.909e+11