Obs. : 2011-08-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.762e+11
Venus      3.827e+11
Earth      3.945e+11
Mars       3.771e+11
Jupiter    3.777e+11
Saturn     3.962e+11
Uranus     3.800e+11
Neptune    3.858e+11
Pluto      3.947e+11