Obs. : 2026-03-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.069e+08
Venus      8.228e+08
Earth      7.500e+08
Mars       8.069e+08
Jupiter    7.540e+08
Saturn     8.387e+08
Uranus     7.918e+08
Neptune    8.387e+08
Pluto      7.657e+08