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Meaning of Wilson-Bappu effect | Babel Free

Noun CEFR B2

Definitions

The correlation between the measured width of the calcium II K emission line and the absolute visual magnitude of a star.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Wilson-Mikity syndrome Wilson-Turner syndrome Wilson's bird of paradise Wilson's disease Wilson's filmy fern Wilson's lichen

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