Obs. : 2023-10-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.893e+08
Venus      8.375e+08
Earth      8.710e+08
Mars       8.893e+08
Jupiter    8.620e+08
Saturn     9.112e+08
Uranus     8.546e+08
Neptune    8.871e+08
Pluto      9.225e+08