Obs. : 2009-06-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.581e+11
Venus      3.506e+11
Earth      3.523e+11
Mars       3.575e+11
Jupiter    3.470e+11
Saturn     3.631e+11
Uranus     3.453e+11
Neptune    3.470e+11
Pluto      3.546e+11