Obs. : 2008-10-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.448e+11
Venus      3.545e+11
Earth      3.453e+11
Mars       3.507e+11
Jupiter    3.538e+11
Saturn     3.364e+11
Uranus     3.453e+11
Neptune    3.492e+11
Pluto      3.561e+11