Obs. : 2025-02-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.987e+08
Venus      8.935e+08
Earth      9.159e+08
Mars       8.309e+08
Jupiter    8.088e+08
Saturn     9.003e+08
Uranus     8.401e+08
Neptune    8.935e+08
Pluto      8.779e+08