Line Tables

These tables give observed air wavelengths for the 2000-20000 Å range for spectra other than Fr I. Outside of the 2000-20000 Å range, the wavelengths are vacuum wavelengths. Lines of Fr I are extrapolated vacuum wavelengths from known energy levels. All observed lines are from NIST ASD. All energy level information is from NIST ASD. Wavelengths from MIT Wavelength Tables have been omitted as this publication appears to still be under copyright. However, in some cases, the exact same wavelength is given by NIST and MIT; in that case, the line is included.

Line intensities have been adjusted in the visible region to match photographed visible spectra. Line intensities of Rn have been adjusted to match the Grotrian diagram of Rn I. Line intensities in the infrared and ultraviolet are less reliable, but every effort was made to estimate them as accurately as possible. The elements He, O, Cl, Ar, Kr, and Xe have had their NIR lines photographed out to roughly 11000 Å. The intensities of the "brightest" several IR lines of each of these elements, in the 7000-10000 Å range, can be trusted. For the range of 3800-8000 Å, estimated visual brightnesses (EVB) are given. A dash in either of the intensity columns means the line intensity would be less than one relative to other lines of the same spectrum.

All Spectra

H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca   Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr   Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Entire Range | 2000-10000 Å | Visible Region | Si CCD/CMOS Region | Thermal IR | Vacuum UV
Specific Wavelength (rounded):  Å  nm
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λ, Å E. Sp.# Rel.Int. EVB Lower Config Lower Term+J Lower Level Upper Config Upper Term+J Upper Level
1822821.72804 Fr I 55 - 22d 2D5/2 32431.57 22p 2P°1/2 32486.43
1827485.38012 Fr I 2 - 20p 2P°1/2 32386.15 21p 2P°1/2 32440.87
1831837.33284 Fr I - - 26p 2P°3/2 32611.45 29p 2P°3/2 32666.04
1840264.99816 Fr I 1 - 25d 2D3/2 32613.15 28d 2D5/2 32667.49
1843012.21917 Fr I 1000 - 18s 2S1/2 32192.251 18p 2P°3/2 32246.51
1847404.39682 Fr I 2 - 24p 2P°1/2 32557.32 26p 2P°3/2 32611.45
1850823.61651 Fr I - - 25d 2D3/2 32613.15 28d 2D3/2 32667.18
1854049.24355 Fr I 4 - 19d 2D3/2 32396.552 20d 2D5/2 32450.488
1855631.84264 Fr I - - 25d 2D5/2 32613.6 28d 2D5/2 32667.49
1858874.26574 Fr I 765 - 18d 2D3/2 32332.354 20p 2P°1/2 32386.15
1861504.09531 Fr I 2 - 20p 2P°3/2 32391.99 21p 2P°3/2 32445.71
1865323.63365 Fr I 3 - 28s 2S1/2 32640.14 30d 2D5/2 32693.75
1866368.04778 Fr I 1 - 25d 2D5/2 32613.6 28d 2D3/2 32667.18
1869753.00563 Fr I 5500 - 12p 2P°3/2 30893.16 11d 2D5/2 30946.643
1870907.39008 Fr I 4 - 26s 2S1/2 32598.34 27d 2D5/2 32651.79
1874062.96852 Fr I 25 - 28s 2S1/2 32640.14 30d 2D3/2 32693.5
1874414.24555 Fr I 375 - 24p 2P°3/2 32560.25 25d 2D5/2 32613.6
1882530.12048 Fr I 1 - 26p 2P°3/2 32611.45 29p 2P°1/2 32664.57
1883239.17137 Fr I 40 - 26s 2S1/2 32598.34 27d 2D3/2 32651.44
1889252.04512 Fr I 2 - 19d 2D3/2 32396.552 20d 2D3/2 32449.483
1890359.16824 Fr I 195 - 24p 2P°3/2 32560.25 25d 2D3/2 32613.15
1890716.58158 Fr I 120 - 25d 2D3/2 32613.15 29p 2P°3/2 32666.04
1894657.06707 Fr I 435 - 23s 2S1/2 32507.47 24p 2P°3/2 32560.25
1895016.10764 Fr I 660 - 21p 2P°1/2 32440.87 21d 2D3/2 32493.64
1896561.53394 Fr I 2 - 19d 2D5/2 32397.761 20d 2D5/2 32450.488
1906941.26621 Fr I 240 - 25d 2D5/2 32613.6 29p 2P°3/2 32666.04
1907668.82869 Fr I 270 - 25p 2P°3/2 32587.72 28s 2S1/2 32640.14
1911205.39724 Fr I 80 - 18d 2D5/2 32333.827 20p 2P°1/2 32386.15
1916443.08164 Fr I 2 - 12p 2P°1/2 30840.98 12p 2P°3/2 30893.16
1919017.46306 Fr I 450 - 22p 2P°3/2 32490.48 24s 2S1/2 32542.59
1924927.81521 Fr I - - 24p 2P°1/2 32557.32 26p 2P°1/2 32609.27
1930129.31866 Fr I 285 - 26s 2S1/2 32598.34 28p 2P°3/2 32650.15
1933413.24775 Fr I 4 - 19d 2D5/2 32397.761 20d 2D3/2 32449.483
1937233.63038 Fr I - - 27s 2S1/2 32620.67 30s 2S1/2 32672.29
1944768.57254 Fr I 255 - 25d 2D3/2 32613.15 29p 2P°1/2 32664.57
1952934.28376 Fr I 315 - 14p 2P°1/2 31605.95 13d 2D5/2 31657.155
1953125. Fr I 25 - 27p 2P°1/2 32630.19 29d 2D5/2 32681.39
1957713.39076 Fr I 2 - 23d 2D3/2 32562.52 25d 2D5/2 32613.6
1961938.39513 Fr I 25 - 25d 2D5/2 32613.6 29p 2P°1/2 32664.57
1963864.8861 Fr I 255 - 27p 2P°1/2 32630.19 29d 2D3/2 32681.11
1974450.60912 Fr I 15 - 19s 2S1/2 32283.18 18d 2D5/2 32333.827
1975113.56903 Fr I 1 - 23d 2D3/2 32562.52 25d 2D3/2 32613.15
1981375.0743 Fr I 1 - 23d 2D5/2 32563.13 25d 2D5/2 32613.6
1981767.73682 Fr I 35 - 24d 2D3/2 32589.68 28s 2S1/2 32640.14
1994415.63622 Fr I 150 - 26s 2S1/2 32598.34 28p 2P°1/2 32648.48
1999200.31987 Fr I 2 - 23d 2D5/2 32563.13 25d 2D3/2 32613.15
2002402.88346 Fr I 4 - 24d 2D5/2 32590.2 28s 2S1/2 32640.14
2003606.49169 Fr I 1 - 27p 2P°1/2 32630.19 30p 2P°3/2 32680.1
2006018.05416 Fr I 225 - 23s 2S1/2 32507.47 24p 2P°1/2 32557.32
2015722.63657 Fr I 3 - 21p 2P°1/2 32440.87 22p 2P°3/2 32490.48
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