Obs. : 2025-11-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.994e+08
Venus      8.034e+08
Earth      8.368e+08
Mars       7.994e+08
Jupiter    8.066e+08
Saturn     8.402e+08
Uranus     8.304e+08
Neptune    8.402e+08
Pluto      8.348e+08