Obs. : 2026-07-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.549e+08
Venus      8.639e+08
Earth      7.179e+08
Mars       8.133e+08
Jupiter    8.621e+08
Saturn     7.607e+08
Uranus     8.133e+08
Neptune    7.607e+08
Pluto      7.179e+08