Obs. : 2023-11-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.991e+08
Venus      8.235e+08
Earth      8.430e+08
Mars       8.417e+08
Jupiter    8.430e+08
Saturn     9.293e+08
Uranus     8.374e+08
Neptune    9.110e+08
Pluto      9.359e+08