Obs. : 2023-04-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.869e+08
Venus      8.829e+08
Earth      8.922e+08
Mars       8.698e+08
Jupiter    8.900e+08
Saturn     8.878e+08
Uranus     8.869e+08
Neptune    8.893e+08
Pluto      8.891e+08