Obs. : 2011-01-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.859e+11
Venus      3.784e+11
Earth      3.806e+11
Mars       3.912e+11
Jupiter    3.918e+11
Saturn     3.711e+11
Uranus     3.918e+11
Neptune    3.899e+11
Pluto      3.850e+11