Obs. : 2025-09-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.878e+08
Venus      7.779e+08
Earth      7.478e+08
Mars       7.995e+08
Jupiter    7.654e+08
Saturn     7.446e+08
Uranus     7.638e+08
Neptune    7.446e+08
Pluto      7.808e+08