Obs. : 2024-02-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.838e+08
Venus      8.728e+08
Earth      8.459e+08
Mars       8.728e+08
Jupiter    8.659e+08
Saturn     8.923e+08
Uranus     8.659e+08
Neptune    8.936e+08
Pluto      8.648e+08