Obs. : 2025-02-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.144e+08
Venus      8.297e+08
Earth      8.032e+08
Mars       7.984e+08
Jupiter    8.293e+08
Saturn     8.180e+08
Uranus     8.349e+08
Neptune    8.297e+08
Pluto      8.216e+08