Obs. : 2009-06-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.539e+11
Venus      3.492e+11
Earth      3.473e+11
Mars       3.534e+11
Jupiter    3.445e+11
Saturn     3.615e+11
Uranus     3.447e+11
Neptune    3.445e+11
Pluto      3.490e+11