Obs. : 2013-03-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.091e+11
Venus      4.431e+11
Earth      4.396e+11
Mars       4.431e+11
Jupiter    4.610e+11
Saturn     4.321e+11
Uranus     4.250e+11
Neptune    4.057e+11
Pluto      3.919e+11