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Fast note on Wien’s law

Just a quick reminder* !

λmax = 2.89776829 x 106 nm K / T

[*] Wien’s displacement law

Selected sky lines

A list of sky lines that can be found in spectra (read … handy sky lines!):

wavelength (in Å):

5577.3 ( > 5579)

5893 ( > 5890, 5896)

6300.3

6363.8 (1/3 of 6300.3)

An excellent and very convenient tool to find and plot the sky lines from 3140 – 10430 can be found at vizier, catalogue J/A+A/407/1157 (Hanuschik+, 2003)



UPDATE 17/11/2015: Another good list of lines is given by the ESO/UVES team in their UVES sky emission spectrum.

Selected optical spectral lines

A small (but growing) list of selected (read handy!) optical lines:

element wavelength(Å)
[NeV] 3346
[NeV] 3426
[OII] 3727
[NeIII] 3869
[NeIII] 3967
Hε 3970
[SII] 4072
Hδ 4101
Ca I 4226
Hγ 4340
[OIII] 4363
HeI 4471
HeII 4686
Hβ 4861
[OIII] 4959
[OIII] 5007
[NI] 5199
[FeVII] 5721
[NII] 5755
HeI 5876
[FeVII] 6087
[OI] 6300
[OI] 6364
[FeX] 6375
[NII] 6548
Hα 6563
[NII] 6583
[SII] 6716
[SII] 6731
[ArIII] 7136

More lines: NIST’s atomic spectroscopy & NIST’s molecular spectroscopy databases (thanks to Brian Kloppenborg for pointing to them..!)

Another list of emission lines is found in Drew Chojnowski’s galaxy emission page.