Obs. : 2008-10-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.506e+11
Venus      3.652e+11
Earth      3.470e+11
Mars       3.597e+11
Jupiter    3.628e+11
Saturn     3.478e+11
Uranus     3.493e+11
Neptune    3.560e+11
Pluto      3.649e+11