Obs. : 2008-09-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.503e+11
Venus      3.503e+11
Earth      3.480e+11
Mars       3.503e+11
Jupiter    3.546e+11
Saturn     3.396e+11
Uranus     3.480e+11
Neptune    3.483e+11
Pluto      3.560e+11