Tag Archive


amateur astronomy awk bash b[e] supergiant cartoon conference convert evolved star exoplanet fedora figaro fits fun galaxy history iraf large magellanic cloud latex linux lmc machine learning magellanic clouds massive star matplotlib meteor mypaper paper peblo photometry planet pro-am pyraf python red supergiant scisoft skinakas observatory small magellanic cloud smc spectroscopy starlink talk ubuntu university of crete video x-ray

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.