Obs. : 2010-12-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.700e+11
Venus      3.620e+11
Earth      3.655e+11
Mars       3.730e+11
Jupiter    3.660e+11
Saturn     3.654e+11
Uranus     3.660e+11
Neptune    3.707e+11
Pluto      3.700e+11