Obs. : 2011-05-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.351e+11
Venus      4.351e+11
Earth      4.093e+11
Mars       4.351e+11
Jupiter    4.304e+11
Saturn     4.313e+11
Uranus     4.222e+11
Neptune    3.919e+11
Pluto      4.033e+11