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 800-8000 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
2.91749 Ar XVIII - - 1s 2S1/2 0 5p 23/2 34276001.28
2.9177 Ar XVIII - - 1s 2S1/2 0 5p 21/2 34273516.6
2.98733 Ar XVIII - - 1s 2S1/2 0 4p 23/2 33474749.8
2.98776 Ar XVIII - - 1s 2S1/2 0 4p 21/2 33469895
3.137 Ar XVII - - 1s2 1S0 0 1s.5p 11 31966560
3.15023 Ar XVIII - - 1s 2S1/2 0 3p 23/2 31743728.5
3.15137 Ar XVIII - - 1s 2S1/2 0 3p 21/2 31732216.2
3.198 Ar XVII 2 - 1s2 1S0 0 1s.4p 11 31253060
3.362 Ar XVII 3 - 1s2 1S0 0 1s.3p 11 29712236
3.36891 Ar XVII - - 1s2 1S0 0 1s.3p 32 29683203
3.36966 Ar XVII - - 1s2 1S0 0 1s.3p 31 29676590
3.37457 Ar XVII - - 1s2 1S0 0 1s.3s 3S1 29633366
3.4059 Ar XVI - - 1s2.2s 2S1/2 0 1s.2s.(1S).3p 23/2 29360800
3.4155 Ar XVI - - 1s2.2p 21/2 257026 1s.2p.(1P°).3p 2P3/2 29535300
3.4166 Ar XVI - - 1s2.2p 21/2 257026 1s.2p.(1P°).3p 2D3/2 29526300
3.4185 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(1P°).3p 2P3/2 29535300
3.4194 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(1P°).3p 2D5/2 29527500
3.4195 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(1P°).3p 2D3/2 29526300
3.4222 Ar XVI - - 1s2.2p 21/2 257026 1s.2p.(3P°).3p 2S1/2 29478400
3.4231 Ar XVI - - 1s2.2s 2S1/2 0 1s.2s.(3S).3p 21/2 29213300
3.4232 Ar XVI - - 1s2.2s 2S1/2 0 1s.2s.(3S).3p 23/2 29212400
3.4245 Ar XVI - - 1s2.2s 2S1/2 0 1s.2s.(3S).3p 43/2 29201300
3.4252 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(3P°).3p 2S1/2 29478400
3.4271 Ar XVI - - 1s2.2p 21/2 257026 1s.2p.(3P°).3p 4S3/2 29436200
3.4278 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(3P°).3p 2D5/2 29455800
3.4301 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(3P°).3p 2D3/2 29436200
3.4359 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(3P°).3p 4D3/2 29387100
3.4365 Ar XVI - - 1s2.2p 23/2 282603 1s.2p.(3P°).3p 2P3/2 29382000
3.4437 Ar XVI - - 1s2.2p 21/2 257026 1s.2s.(1S).3s 2S1/2 29295700
3.4438 Ar XVI - - 1s2.2p 21/2 257026 1s.2s.(3S).3d 2D3/2 29294700
3.4467 Ar XVI - - 1s2.2p 23/2 282603 1s.2s.(1S).3s 2S1/2 29295700
3.4468 Ar XVI - - 1s2.2p 23/2 282603 1s.2s.(3S).3d 2D5/2 29295000
3.4579 Ar XVI - - 1s2.2p 21/2 257026 1s.2s.(3S).3s 2S1/2 29176100
3.461 Ar XVI - - 1s2.2p 23/2 282603 1s.2s.(3S).3s 2S1/2 29176100
3.72348 Ar XVII - - 1s.2p 31 25193006 2p2 1S0 52049600
3.73111 Ar XVIII 2 - 1s 2S1/2 0 2p 23/2 26801739
3.73238 Ar XVII - - 1s.2s 3S1 25036647 2s.2p 11 51829200
3.73652 Ar XVIII - - 1s 2S1/2 0 2p 21/2 26762896
3.74151 Ar XVII - - 1s.2p 11 25322440 2p2 1S0 52049600
3.7537 Ar XVII - - 1s.2p 31 25193006 2p2 1D2 51833400
3.75541 Ar XVII - - 1s.2s 1S0 25200961 2s.2p 11 51829200
3.75683 Ar XVII - - 1s.2p 32 25215228 2p2 1D2 51833400
3.7614 Ar XVII - - 1s.2s 3S1 25036647 2s.2p 32 51622500
3.76367 Ar XVII - - 1s.2p 31 25193006 2p2 3P2 51762800
3.76507 Ar XVII - - 1s.2s 3S1 25036647 2s.2p 31 51596600
3.7656 Ar XVII - - 1s.2p 30 25187805 2p2 3P1 51744000
3.76634 Ar XVII - - 1s.2p 31 25193006 2p2 3P1 51744000
3.76657 Ar XVII - - 1s.2s 3S1 25036647 2s.2p 30 51586000
3.76682 Ar XVII - - 1s.2p 32 25215228 2p2 3P2 51762800
3.76831 Ar XVII - - 1s.2p 31 25193006 2p2 3P0 51730100
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