Obs. : 2023-09-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.222e+08
Venus      9.174e+08
Earth      9.120e+08
Mars       9.368e+08
Jupiter    9.097e+08
Saturn     9.151e+08
Uranus     9.097e+08
Neptune    9.127e+08
Pluto      9.238e+08