Obs. : 2023-06-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.910e+08
Venus      8.722e+08
Earth      9.359e+08
Mars       8.722e+08
Jupiter    8.925e+08
Saturn     9.289e+08
Uranus     8.910e+08
Neptune    9.160e+08
Pluto      9.499e+08