Obs. : 2008-11-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.469e+11
Venus      3.509e+11
Earth      3.468e+11
Mars       3.469e+11
Jupiter    3.509e+11
Saturn     3.395e+11
Uranus     3.485e+11
Neptune    3.501e+11
Pluto      3.497e+11