Obs. : 2010-02-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.955e+11
Venus      3.933e+11
Earth      3.680e+11
Mars       3.685e+11
Jupiter    3.933e+11
Saturn     3.720e+11
Uranus     3.864e+11
Neptune    3.955e+11
Pluto      3.728e+11