Obs. : 2009-10-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.437e+11
Venus      3.397e+11
Earth      3.543e+11
Mars       3.460e+11
Jupiter    3.614e+11
Saturn     3.397e+11
Uranus     3.543e+11
Neptune    3.575e+11
Pluto      3.700e+11