Obs. : 2024-04-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.214e+08
Venus      8.214e+08
Earth      9.446e+08
Mars       8.319e+08
Jupiter    8.413e+08
Saturn     8.319e+08
Uranus     8.413e+08
Neptune    8.249e+08
Pluto      8.592e+08