Obs. : 2026-10-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.264e+08
Venus      7.270e+08
Earth      7.935e+08
Mars       7.935e+08
Jupiter    7.935e+08
Saturn     7.961e+08
Uranus     8.007e+08
Neptune    7.935e+08
Pluto      7.552e+08