Obs. : 2009-05-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.642e+11
Venus      3.392e+11
Earth      3.534e+11
Mars       3.392e+11
Jupiter    3.287e+11
Saturn     3.798e+11
Uranus     3.361e+11
Neptune    3.287e+11
Pluto      3.439e+11