Obs. : 2011-01-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.825e+11
Venus      3.661e+11
Earth      3.763e+11
Mars       4.045e+11
Jupiter    3.889e+11
Saturn     3.622e+11
Uranus     3.889e+11
Neptune    4.055e+11
Pluto      3.745e+11