Obs. : 2023-10-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.853e+08
Venus      9.381e+08
Earth      9.074e+08
Mars       8.828e+08
Jupiter    9.238e+08
Saturn     9.057e+08
Uranus     9.311e+08
Neptune    9.045e+08
Pluto      9.137e+08