Obs. : 2008-12-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.528e+11
Venus      3.551e+11
Earth      3.494e+11
Mars       3.484e+11
Jupiter    3.553e+11
Saturn     3.404e+11
Uranus     3.506e+11
Neptune    3.551e+11
Pluto      3.528e+11