Obs. : 2025-04-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.086e+08
Venus      8.995e+08
Earth      8.854e+08
Mars       8.882e+08
Jupiter    9.033e+08
Saturn     8.995e+08
Uranus     9.282e+08
Neptune    9.086e+08
Pluto      8.931e+08