Obs. : 2024-04-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.634e+08
Venus      8.634e+08
Earth      1.059e+09
Mars       8.956e+08
Jupiter    8.439e+08
Saturn     8.956e+08
Uranus     8.439e+08
Neptune    8.956e+08
Pluto      9.174e+08