Obs. : 2026-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.777e+08
Venus      7.670e+08
Earth      6.829e+08
Mars       7.700e+08
Jupiter    7.617e+08
Saturn     7.592e+08
Uranus     7.777e+08
Neptune    7.372e+08
Pluto      6.930e+08