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[ASD Home][Lines Query][Levels Query][List of Spectra][Ground States and Ionization Energies][Bibliography][Help] NIST Physical Measurement Laboratory
National Institute of Standards and Technology NIST Physical Measurement Laboratory
Ion No. of lines Lines with
transition
probabilities
 Lines with
level
designations

He I 4589 2289 4589
He II 140 140 140

Total: 4729  2429 4729