Obs. : 2023-08-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.856e+08
Venus      8.782e+08
Earth      8.692e+08
Mars       8.808e+08
Jupiter    8.802e+08
Saturn     8.650e+08
Uranus     8.803e+08
Neptune    8.692e+08
Pluto      8.649e+08