Obs. : 2013-09-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.275e+11
Venus      4.373e+11
Earth      4.002e+11
Mars       3.980e+11
Jupiter    4.030e+11
Saturn     4.347e+11
Uranus     4.021e+11
Neptune    3.993e+11
Pluto      4.069e+11