Obs. : 2023-11-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.141e+08
Venus      8.973e+08
Earth      8.735e+08
Mars       8.141e+08
Jupiter    8.805e+08
Saturn     8.509e+08
Uranus     8.866e+08
Neptune    8.570e+08
Pluto      8.338e+08