Obs. : 2023-06-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.622e+08
Venus      8.642e+08
Earth      8.955e+08
Mars       8.642e+08
Jupiter    8.768e+08
Saturn     8.576e+08
Uranus     8.622e+08
Neptune    8.663e+08
Pluto      8.568e+08