Obs. : 2023-05-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.782e+08
Venus      8.822e+08
Earth      8.960e+08
Mars       8.887e+08
Jupiter    8.812e+08
Saturn     8.805e+08
Uranus     8.867e+08
Neptune    8.778e+08
Pluto      8.793e+08