Choose the file:
Rainbow colours; Solar Spectrum; Hydrogen; Helium; Helium I; Helium II; Carbon; Nitrogen; Oxygen; Neon; Sodium; Magnesium; Aluminum; Silicon; Sulfur; Argon; Potassium; Potassium I; Potassium II; Calcium; Calcium I; Calcium II; Calcium III; Iron; Krypton; Strontium; Strontium I; Xenon; Barium; Barium I; Mercury;

young person's eyes; my own eyes; Jon's eyes (green-yellow blindness); just Black & White;


start wavelength    Ångström
end wavelength    Ångström
line width    Ångström
contrast
continuum
    (continuum ≥ 1 shows lines in absorption)

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