Obs. : 2010-07-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.844e+11
Venus      3.853e+11
Earth      3.796e+11
Mars       3.889e+11
Jupiter    3.780e+11
Saturn     3.889e+11
Uranus     3.766e+11
Neptune    3.779e+11
Pluto      3.852e+11