Obs. : 2024-02-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.670e+08
Venus      8.712e+08
Earth      8.324e+08
Mars       8.712e+08
Jupiter    8.077e+08
Saturn     8.670e+08
Uranus     8.077e+08
Neptune    8.450e+08
Pluto      8.656e+08