Obs. : 2009-03-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.458e+11
Venus      3.570e+11
Earth      3.479e+11
Mars       3.458e+11
Jupiter    3.372e+11
Saturn     3.444e+11
Uranus     3.570e+11
Neptune    3.458e+11
Pluto      3.319e+11