Obs. : 2025-06-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.987e+08
Venus      8.008e+08
Earth      7.863e+08
Mars       7.950e+08
Jupiter    8.049e+08
Saturn     8.021e+08
Uranus     8.008e+08
Neptune    8.021e+08
Pluto      7.863e+08