Obs. : 2023-10-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.461e+08
Venus      9.066e+08
Earth      8.397e+08
Mars       9.461e+08
Jupiter    8.563e+08
Saturn     8.405e+08
Uranus     8.664e+08
Neptune    8.395e+08
Pluto      8.702e+08