Obs. : 2012-09-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.091e+11
Venus      3.974e+11
Earth      4.648e+11
Mars       4.543e+11
Jupiter    4.430e+11
Saturn     4.225e+11
Uranus     4.607e+11
Neptune    4.761e+11
Pluto      4.746e+11