Obs. : 2023-10-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.450e+08
Venus      9.418e+08
Earth      8.942e+08
Mars       9.210e+08
Jupiter    9.026e+08
Saturn     8.882e+08
Uranus     9.026e+08
Neptune    8.942e+08
Pluto      8.889e+08