Obs. : 2010-07-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.864e+11
Venus      3.810e+11
Earth      3.896e+11
Mars       3.854e+11
Jupiter    3.777e+11
Saturn     3.901e+11
Uranus     3.777e+11
Neptune    3.828e+11
Pluto      3.955e+11