Dirk Brouwer (; September 1, 1902 – January 31, 1966) was a Dutch-American astronomer. He received his PhD in 1927 at Leiden University under Willem de Sitter and then went to Yale University. From 1941 until 1966 he was editor of the Astronomical Journal. He specialized in celestial mechanics and together with Gerald Clemence wrote the textbook Methods of Celestial Mechanics. Awards Gold Medal of the Royal Astronomical Society (1955) Bruce Medal (1966) Named after him Asteroid 1746 Brouwer The crater Brouwer on the Moon (jointly with mathematician Luitzen Egbertus Jan Brouwer) Dirk Brouwer Award of the Division on Dynamical Astronomy of the American Astronomical Society Dirk Brouwer Award of the American Astronautical Society References External links Bruce Medal page Awarding of Bruce medal Awarding of RAS gold medal National Academy of Sciences Biographical Memoir Obituaries AJ 71 (1966) 76 (one paragraph) Obs 86 (1966) 92 (one line) PASP 78 (1966) 104 (one line, see also ) QJRAS 8 (1967) 84 1902 births 1966 deaths 20th-century American astronomers 20th-century Dutch astronomers Dutch emigrants to the United States Leiden University alumni Members of the United States National Academy of Sciences Scientists from Rotterdam Recipients of the Gold Medal of the Royal Astronomical Society Yale University faculty The Astronomical Journal editors