Obs. : 2023-06-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.881e+08
Venus      8.852e+08
Earth      8.870e+08
Mars       8.852e+08
Jupiter    9.124e+08
Saturn     9.134e+08
Uranus     9.000e+08
Neptune    9.312e+08
Pluto      8.983e+08