Obs. : 2022-04-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.499e+08
Venus      8.484e+08
Earth      7.911e+08
Mars       8.521e+08
Jupiter    8.484e+08
Saturn     8.218e+08
Uranus     7.613e+08
Neptune    8.521e+08
Pluto      8.103e+08