Obs. : 2011-08-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.905e+11
Venus      3.868e+11
Earth      3.947e+11
Mars       3.852e+11
Jupiter    3.807e+11
Saturn     3.955e+11
Uranus     3.799e+11
Neptune    3.848e+11
Pluto      3.972e+11