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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > spectral line > hydrogen line > Lyman line > Lyman alpha |
Lyman alpha comparison table |
Subject | has lower energy level | has specie | has upper energy level | has definition | has series limit | is a kind of | has wavelength | is an instance of |
---|---|---|---|---|---|---|---|---|
Lyman line | 1 | hydrogen (H I) | 912 Å | hydrogen line | ||||
resonance line | The longest-wavelength line arising from the ground state. | spectral line | ||||||
Lyman alpha | 1 | hydrogen (H I) | 2 | The resonance line of hydrogen. It can only be studied from spacecraft or in the spectra of highly redshifted quasars. | 912 Å | 1215.67 Å | Lyman line |
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