Obs. : 2011-01-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.705e+11
Venus      3.606e+11
Earth      3.808e+11
Mars       3.764e+11
Jupiter    3.708e+11
Saturn     3.602e+11
Uranus     3.708e+11
Neptune    3.738e+11
Pluto      3.694e+11