Obs. : 2009-01-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.602e+11
Venus      3.570e+11
Earth      3.474e+11
Mars       3.504e+11
Jupiter    3.580e+11
Saturn     3.414e+11
Uranus     3.570e+11
Neptune    3.589e+11
Pluto      3.453e+11