Obs. : 2010-12-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.731e+11
Venus      3.642e+11
Earth      3.712e+11
Mars       3.740e+11
Jupiter    3.656e+11
Saturn     3.666e+11
Uranus     3.656e+11
Neptune    3.703e+11
Pluto      3.740e+11