Obs. : 2026-08-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.993e+08
Venus      7.554e+08
Earth      6.694e+08
Mars       7.963e+08
Jupiter    8.048e+08
Saturn     7.356e+08
Uranus     7.861e+08
Neptune    7.356e+08
Pluto      6.602e+08