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 …
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 …