Obs. : 2008-06-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.581e+11
Venus      3.543e+11
Earth      3.417e+11
Mars       3.577e+11
Jupiter    3.403e+11
Saturn     3.583e+11
Uranus     3.443e+11
Neptune    3.402e+11
Pluto      3.417e+11