published by the University of California, Berkeley, 1953) See also List of astronomical catalogues Melotte catalogue - a similar catalogue of star clusters published by Philibert Jacques Melotte in 1915. Collinder catalogue - a similar catalogue of open star clusters published by Per Collinder in 1931, one year after Trumpler. References National Academy of Sciences biography - Biographical Memoirs V.78 (2000) pp. 276–297 The Munich Astro Archive – Robert Julius Trumpler (October 2, 1886 - September 10, 1956) The Interstellar Medium: Dust Further reading Winkler, Kurt, "Robert Julius Trumpler and the Cosmos: The Contributions of a Swiss American Astronomer," Swiss American Historical Society Review, vol. 49, no. 2 (2013), p. 1-9. 1886 births 1956 deaths 20th-century American astronomers Swiss emigrants to the United States University of California, Berkeley faculty 20th-century Swiss astronomers Members of the United States National Academy of Sciences