Obs. : 2025-05-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.178e+08
Venus      8.325e+08
Earth      8.291e+08
Mars       8.236e+08
Jupiter    8.066e+08
Saturn     8.341e+08
Uranus     8.178e+08
Neptune    8.341e+08
Pluto      8.270e+08