Obs. : 2025-07-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.022e+08
Venus      8.198e+08
Earth      8.373e+08
Mars       8.147e+08
Jupiter    8.062e+08
Saturn     8.638e+08
Uranus     8.395e+08
Neptune    8.638e+08
Pluto      8.322e+08