Obs. : 2009-12-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.643e+11
Venus      3.534e+11
Earth      3.614e+11
Mars       3.574e+11
Jupiter    3.722e+11
Saturn     3.443e+11
Uranus     3.669e+11
Neptune    3.722e+11
Pluto      3.598e+11