Obs. : 2025-05-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.109e+08
Venus      8.263e+08
Earth      8.270e+08
Mars       8.116e+08
Jupiter    7.973e+08
Saturn     8.291e+08
Uranus     8.109e+08
Neptune    8.291e+08
Pluto      8.235e+08