Obs. : 2022-12-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.443e+08
Venus      8.590e+08
Earth      8.350e+08
Mars       8.299e+08
Jupiter    8.242e+08
Saturn     8.247e+08
Uranus     8.214e+08
Neptune    8.225e+08
Pluto      8.321e+08