Obs. : 2023-02-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.894e+08
Venus      9.348e+08
Earth      9.443e+08
Mars       9.707e+08
Jupiter    9.391e+08
Saturn     9.347e+08
Uranus     9.512e+08
Neptune    9.348e+08
Pluto      8.894e+08