A band comparison table |
Subject | has discoverer | has specie | has definition | has dicovery date | occurs in | is a kind of | has wavelength | has antonym |
---|---|---|---|---|---|---|---|---|
Fraunhofer line | Joseph Fraunhofer | Absorption line in the spectrum of the Sun, studied by Fraunhofer in 1814. The nine most prominent he labeled with capital letters (from the red end) A. B. C. D. E. F. G. H. and K. The A band and B band are now known to be groups of telluric lines due to O2 absorption in Earth's atmosphere, and C and F are respectively known as Hα and Hβ. | 1814 | Sun | absorption line | emission line | ||
molecular band | molecule | A series of closely spaced, often unresolved, emission or absorption lines found in the spectra of molecules. Each line represents an increment of energy due to a change in the rotational state of the molecule. | set of molecular lines | |||||
A band | Joseph Fraunhofer | O2 | One of about a dozen of the strongest Fraunhofer lines seen in the Solar spectrum, the A band at 7600 angstoms is due to telluric lines of molecular oxygen in the Earth's atmosphere. (originally thought to originate in the Sun by Fraunhofer) | 1814 | Earth's atmosphere | Fraunhofer line | 7600 Å | emission line |
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