Obs. : 2011-04-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.315e+11
Venus      4.512e+11
Earth      4.180e+11
Mars       4.315e+11
Jupiter    4.315e+11
Saturn     4.180e+11
Uranus     4.390e+11
Neptune    4.535e+11
Pluto      4.408e+11