Obs. : 2023-10-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.164e+08
Venus      9.115e+08
Earth      9.712e+08
Mars       9.394e+08
Jupiter    9.615e+08
Saturn     9.657e+08
Uranus     9.615e+08
Neptune    9.700e+08
Pluto      9.644e+08