Obs. : 2026-02-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.336e+08
Venus      8.336e+08
Earth      7.972e+08
Mars       8.340e+08
Jupiter    8.026e+08
Saturn     8.148e+08
Uranus     8.009e+08
Neptune    8.148e+08
Pluto      8.340e+08