Obs. : 2023-05-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.406e+08
Venus      8.532e+08
Earth      8.598e+08
Mars       8.593e+08
Jupiter    8.408e+08
Saturn     8.366e+08
Uranus     8.465e+08
Neptune    8.398e+08
Pluto      8.325e+08