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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > spectral line > hydrogen line > Lyman line
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Lyman line comparison table
Subject has upper energy level has definition has wavelength
Lyman alpha2The resonance line of hydrogen. It can only be studied from spacecraft or in the spectra of highly redshifted quasars.1215.67 Å
Lyman beta3 1026 Å

Next hydrogen line: Paschen line    Up: hydrogen line, spectral series line    Previous hydrogen line: Brackett line