Obs. : 2026-06-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.636e+08
Venus      7.646e+08
Earth      8.213e+08
Mars       7.670e+08
Jupiter    7.636e+08
Saturn     8.050e+08
Uranus     7.634e+08
Neptune    8.050e+08
Pluto      8.230e+08