Obs. : 2008-10-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.487e+11
Venus      3.634e+11
Earth      3.473e+11
Mars       3.584e+11
Jupiter    3.623e+11
Saturn     3.496e+11
Uranus     3.506e+11
Neptune    3.543e+11
Pluto      3.642e+11