Obs. : 2023-12-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.904e+08
Venus      8.047e+08
Earth      8.335e+08
Mars       8.590e+08
Jupiter    8.847e+08
Saturn     9.678e+08
Uranus     8.470e+08
Neptune    9.332e+08
Pluto      9.437e+08