Obs. : 2013-07-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.305e+11
Venus      4.223e+11
Earth      4.343e+11
Mars       4.517e+11
Jupiter    4.372e+11
Saturn     4.409e+11
Uranus     4.359e+11
Neptune    4.327e+11
Pluto      4.343e+11