Obs. : 2011-12-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.707e+11
Venus      4.565e+11
Earth      4.627e+11
Mars       4.600e+11
Jupiter    4.605e+11
Saturn     4.702e+11
Uranus     4.469e+11
Neptune    4.427e+11
Pluto      4.679e+11