The scientist analyzed the spectra of the stars.

The electromagnetic spectra of different stars vary in intensity and wavelength.

The absorption spectra of different elements can be used to identify their presence in a sample.

Band spectra are used to analyze the emission or absorption of light by a material.

Line spectra are used to identify elements in a sample.

Mass spectra are used to analyze the composition of a substance.

The light spectra emitted by the stars are beautiful.

There are various political spectra in different countries.

The optical spectra of the stars were analyzed to determine their composition.

The first-order spectra of the stars were analyzed.