Obs. : 2026-02-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.010e+08
Venus      7.963e+08
Earth      7.698e+08
Mars       7.988e+08
Jupiter    7.498e+08
Saturn     7.922e+08
Uranus     7.564e+08
Neptune    7.922e+08
Pluto      7.944e+08