Obs. : 2014-05-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.004e+11
Venus      3.985e+11
Earth      3.854e+11
Mars       3.772e+11
Jupiter    3.879e+11
Saturn     3.837e+11
Uranus     3.985e+11
Neptune    4.021e+11
Pluto      3.950e+11