Obs. : 2009-02-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.456e+11
Venus      3.474e+11
Earth      3.483e+11
Mars       3.456e+11
Jupiter    3.530e+11
Saturn     3.402e+11
Uranus     3.509e+11
Neptune    3.556e+11
Pluto      3.273e+11