Obs. : 2023-12-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.796e+08
Venus      9.234e+08
Earth      8.194e+08
Mars       9.283e+08
Jupiter    7.911e+08
Saturn     7.891e+08
Uranus     8.105e+08
Neptune    7.812e+08
Pluto      8.521e+08