Obs. : 2009-05-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.504e+11
Venus      3.478e+11
Earth      3.572e+11
Mars       3.519e+11
Jupiter    3.456e+11
Saturn     3.626e+11
Uranus     3.472e+11
Neptune    3.456e+11
Pluto      3.505e+11