Obs. : 2025-11-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.797e+08
Venus      7.904e+08
Earth      7.918e+08
Mars       7.797e+08
Jupiter    8.279e+08
Saturn     7.819e+08
Uranus     8.084e+08
Neptune    7.819e+08
Pluto      8.013e+08