Obs. : 2023-05-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.879e+08
Venus      8.686e+08
Earth      9.263e+08
Mars       8.526e+08
Jupiter    8.931e+08
Saturn     9.039e+08
Uranus     8.879e+08
Neptune    9.050e+08
Pluto      9.132e+08