Obs. : 2025-02-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.278e+08
Venus      9.107e+08
Earth      9.584e+08
Mars       9.124e+08
Jupiter    8.497e+08
Saturn     9.226e+08
Uranus     8.498e+08
Neptune    9.107e+08
Pluto      9.242e+08