Obs. : 2025-07-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.974e+08
Venus      7.972e+08
Earth      7.861e+08
Mars       7.956e+08
Jupiter    7.894e+08
Saturn     8.104e+08
Uranus     8.081e+08
Neptune    8.104e+08
Pluto      7.861e+08