Obs. : 2010-12-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.847e+11
Venus      3.803e+11
Earth      3.765e+11
Mars       3.918e+11
Jupiter    3.936e+11
Saturn     3.731e+11
Uranus     3.936e+11
Neptune    3.930e+11
Pluto      3.862e+11