Obs. : 2008-12-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.499e+11
Venus      3.485e+11
Earth      3.440e+11
Mars       3.430e+11
Jupiter    3.508e+11
Saturn     3.419e+11
Uranus     3.420e+11
Neptune    3.485e+11
Pluto      3.499e+11