Obs. : 2025-10-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.572e+08
Venus      8.417e+08
Earth      7.530e+08
Mars       8.572e+08
Jupiter    8.001e+08
Saturn     7.530e+08
Uranus     7.782e+08
Neptune    7.530e+08
Pluto      7.656e+08