Obs. : 2010-04-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.885e+11
Venus      3.885e+11
Earth      3.669e+11
Mars       3.823e+11
Jupiter    3.710e+11
Saturn     3.711e+11
Uranus     3.801e+11
Neptune    3.754e+11
Pluto      3.605e+11