Obs. : 2008-07-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.549e+11
Venus      3.532e+11
Earth      3.434e+11
Mars       3.552e+11
Jupiter    3.456e+11
Saturn     3.552e+11
Uranus     3.395e+11
Neptune    3.407e+11
Pluto      3.506e+11