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
6662.52 Ho I 585 117
6680.46 Ho I 270 50
6681.62 Ho I 300 56
6694.32 Ho I 70 13
6722.34 Ho I 1500 208
6745.05 Ho I 1000 166
6766.74 Ho I 120 16
6774.68 Ho I 495 68
6785.43 Ho I 270 34
6793.7 Ho I 135 18
6811.04 Ho I 300 35
6820.38 Ho I 300 34
6821.64 Ho I 480 55
6825.72 Ho I 345 37
6865.85 Ho I 540 50
6883.36 Ho I 135 12
6888.5 Ho I 180 15
6892.96 Ho I 135 11
6897.95 Ho I 150 12
6903.8 Ho I 135 11
6913.47 Ho I 120 10
6916.7 Ho I 75 5
6939.49 Ho I 285 19
6950.39 Ho I 300 20
6955.3 Ho I 85 5
6976.7 Ho II 120 7
7242.08 Ho I 55 1
7250.6 Ho I 55 1
7496.2 Ho I 25 -
7510.74 Ho I 45 -
7555.09 Ho I 645 1
7589.2 Ho I 80 -
7591.87 Ho I 105 -
7593.64 Ho I 40 -
7594.35 Ho I 30 -
7602.31 Ho II 55 -
7605.35 Ho I 70 -
7617.05 Ho I 55 -
7627.98 Ho I 65 -
7628.42 Ho I 180 -
7641.14 Ho I 40 -
7648.16 Ho I 20 -
7653.8 Ho I 65 -
7667.3 Ho I 55 -
7690.43 Ho I 90 -
7693.15 Ho I 225 -
7715.06 Ho I 180 -
7719.05 Ho I 75 -
7738.98 Ho I 75 -
7752.01 Ho I 35 -
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