Obs. : 2010-05-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.795e+11
Venus      3.826e+11
Earth      3.727e+11
Mars       3.918e+11
Jupiter    3.670e+11
Saturn     3.903e+11
Uranus     3.670e+11
Neptune    3.602e+11
Pluto      3.683e+11