Obs. : 2025-02-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.980e+08
Venus      9.617e+08
Earth      8.965e+08
Mars       9.045e+08
Jupiter    9.358e+08
Saturn     8.980e+08
Uranus     9.603e+08
Neptune    9.305e+08
Pluto      8.372e+08