Obs. : 2026-08-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.889e+08
Venus      6.802e+08
Earth      7.542e+08
Mars       7.381e+08
Jupiter    6.889e+08
Saturn     7.801e+08
Uranus     7.684e+08
Neptune    7.778e+08
Pluto      7.282e+08