Obs. : 2014-04-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.134e+11
Venus      4.057e+11
Earth      4.004e+11
Mars       4.005e+11
Jupiter    4.047e+11
Saturn     4.003e+11
Uranus     4.225e+11
Neptune    4.069e+11
Pluto      3.998e+11