Obs. : 2025-02-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.175e+08
Venus      8.837e+08
Earth      9.622e+08
Mars       9.278e+08
Jupiter    8.540e+08
Saturn     9.078e+08
Uranus     8.411e+08
Neptune    9.078e+08
Pluto      9.297e+08