Obs. : 2026-10-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.327e+08
Venus      7.351e+08
Earth      7.859e+08
Mars       7.962e+08
Jupiter    7.962e+08
Saturn     7.859e+08
Uranus     7.986e+08
Neptune    7.859e+08
Pluto      7.470e+08