Obs. : 2023-04-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.993e+08
Venus      9.009e+08
Earth      9.071e+08
Mars       8.974e+08
Jupiter    8.943e+08
Saturn     9.114e+08
Uranus     8.993e+08
Neptune    9.015e+08
Pluto      9.188e+08