Obs. : 2023-01-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.229e+08
Venus      9.254e+08
Earth      8.676e+08
Mars       8.204e+08
Jupiter    8.972e+08
Saturn     9.254e+08
Uranus     8.367e+08
Neptune    9.184e+08
Pluto      9.410e+08