Obs. : 2023-10-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.402e+08
Venus      9.049e+08
Earth      8.315e+08
Mars       9.402e+08
Jupiter    8.461e+08
Saturn     8.425e+08
Uranus     8.580e+08
Neptune    8.340e+08
Pluto      9.040e+08