Obs. : 2024-11-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.870e+08
Venus      8.911e+08
Earth      9.933e+08
Mars       1.043e+09
Jupiter    1.024e+09
Saturn     9.573e+08
Uranus     1.010e+09
Neptune    9.676e+08
Pluto      9.238e+08