Obs. : 2023-04-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.877e+08
Venus      8.900e+08
Earth      9.021e+08
Mars       8.952e+08
Jupiter    8.907e+08
Saturn     9.037e+08
Uranus     8.900e+08
Neptune    9.027e+08
Pluto      8.922e+08