Obs. : 2011-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.811e+11
Venus      4.811e+11
Earth      4.688e+11
Mars       4.799e+11
Jupiter    4.575e+11
Saturn     4.887e+11
Uranus     4.469e+11
Neptune    4.455e+11
Pluto      4.715e+11