SX Arietis variable

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SX Arietis variables are a class of variable stars. They are generally B-type main sequence stars of spectral types B0p to B9p— high-temperature analogues of Alpha2 Canum Venaticorum variables—and exhibit strong magnetic fields and intense He I and Si III spectral lines.

Excerpt from the Wikipedia article “SX Arietis variable”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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