peculiar star

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A star whose spectrum has unusual features compared with the majority of stars of its spectral type; the letter p is appended to the spectral type to distinguish this fact. The term is applied most usually to stars between spectral types B and F, where the spectra show signs of chemical anomalies, notably enhanced abundance of elements such as manganese, silicon, europium, chromium, and strontium.

Subjects: Astronomy and Astrophysics.

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