Obs. : 2026-06-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.726e+08
Venus      8.849e+08
Earth      7.957e+08
Mars       8.144e+08
Jupiter    8.849e+08
Saturn     7.880e+08
Uranus     8.255e+08
Neptune    7.880e+08
Pluto      7.943e+08