Obs. : 2010-02-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.937e+11
Venus      3.962e+11
Earth      3.684e+11
Mars       3.698e+11
Jupiter    3.962e+11
Saturn     3.670e+11
Uranus     3.901e+11
Neptune    3.937e+11
Pluto      3.694e+11