Obs. : 2023-09-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.719e+08
Venus      8.793e+08
Earth      8.735e+08
Mars       8.852e+08
Jupiter    8.862e+08
Saturn     8.649e+08
Uranus     8.862e+08
Neptune    8.754e+08
Pluto      8.687e+08