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Named in honor of Daniel Chalonge (1895–1977), astronome titulaire at the Paris Observatory, a co-founder of the Institut d’Astrophysique, well known for his fundamental spectrophotometric work, especially on the Sun and on early-type stars. He was the author of the first three-dimensional stellar classification. A native of Grenoble, he was a passionate mountaineer and had some first ascents to his credit. (M 4785)

Obituary published in Q.J.R. Astron. Soc., Vol. 21, p. 481–483 (1980).