Obs. : 2025-11-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.587e+08
Venus      7.648e+08
Earth      7.895e+08
Mars       7.998e+08
Jupiter    7.925e+08
Saturn     7.887e+08
Uranus     7.816e+08
Neptune    7.887e+08
Pluto      8.310e+08