Obs. : 2009-12-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.768e+11
Venus      3.757e+11
Earth      3.542e+11
Mars       3.537e+11
Jupiter    3.657e+11
Saturn     3.557e+11
Uranus     3.572e+11
Neptune    3.657e+11
Pluto      3.757e+11