Obs. : 2012-08-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.098e+11
Venus      4.006e+11
Earth      4.331e+11
Mars       4.460e+11
Jupiter    3.973e+11
Saturn     4.460e+11
Uranus     3.964e+11
Neptune    4.279e+11
Pluto      4.427e+11