Obs. : 2023-09-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.800e+08
Venus      8.920e+08
Earth      8.848e+08
Mars       8.786e+08
Jupiter    9.109e+08
Saturn     8.652e+08
Uranus     9.109e+08
Neptune    8.848e+08
Pluto      8.665e+08