Obs. : 2008-11-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.350e+11
Venus      3.535e+11
Earth      3.450e+11
Mars       3.431e+11
Jupiter    3.537e+11
Saturn     3.329e+11
Uranus     3.456e+11
Neptune    3.492e+11
Pluto      3.535e+11