Argelander's method

noun

Ar·​ge·​lan·​der's method

ˈärgəˌlandərz-,

-län-

: a method of visual photometry that determines the magnitude of a star or the extent of changes in brightness of a variable star by comparisons with a sequence of neighboring stars of slightly different magnitudes

Word History

Etymology

after F. W. A. Argelander †1875 German astronomer

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