Obs. : 2026-09-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.349e+08
Venus      7.654e+08
Earth      7.676e+08
Mars       7.265e+08
Jupiter    7.209e+08
Saturn     7.553e+08
Uranus     7.415e+08
Neptune    7.553e+08
Pluto      7.750e+08