Obs. : 2025-07-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.185e+08
Venus      7.924e+08
Earth      8.175e+08
Mars       8.214e+08
Jupiter    8.030e+08
Saturn     8.037e+08
Uranus     7.924e+08
Neptune    8.037e+08
Pluto      8.175e+08