Obs. : 2008-12-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.485e+11
Venus      3.506e+11
Earth      3.476e+11
Mars       3.450e+11
Jupiter    3.506e+11
Saturn     3.425e+11
Uranus     3.488e+11
Neptune    3.489e+11
Pluto      3.485e+11