Obs. : 2009-05-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.568e+11
Venus      3.575e+11
Earth      3.494e+11
Mars       3.585e+11
Jupiter    3.505e+11
Saturn     3.524e+11
Uranus     3.543e+11
Neptune    3.505e+11
Pluto      3.494e+11