Obs. : 2023-05-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.837e+08
Venus      8.638e+08
Earth      9.026e+08
Mars       8.525e+08
Jupiter    8.863e+08
Saturn     8.866e+08
Uranus     8.738e+08
Neptune    8.922e+08
Pluto      8.819e+08