Obs. : 2008-08-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.480e+11
Venus      3.480e+11
Earth      3.462e+11
Mars       3.495e+11
Jupiter    3.476e+11
Saturn     3.458e+11
Uranus     3.435e+11
Neptune    3.462e+11
Pluto      3.479e+11