Obs. : 2023-10-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.539e+08
Venus      9.123e+08
Earth      8.535e+08
Mars       9.539e+08
Jupiter    8.844e+08
Saturn     8.521e+08
Uranus     8.844e+08
Neptune    8.511e+08
Pluto      8.652e+08