Obs. : 2026-10-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.581e+08
Venus      7.683e+08
Earth      6.831e+08
Mars       7.170e+08
Jupiter    7.309e+08
Saturn     6.831e+08
Uranus     6.913e+08
Neptune    6.885e+08
Pluto      7.368e+08