Obs. : 2010-09-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.629e+11
Venus      3.741e+11
Earth      3.735e+11
Mars       3.741e+11
Jupiter    3.650e+11
Saturn     3.683e+11
Uranus     3.650e+11
Neptune    3.735e+11
Pluto      3.784e+11