Bok, Bart J

Bok, Bart J

▪ American astronomer
born , April 28, 1906, Hoorn, Neth.
died Aug. 7, 1983, Tucson, Ariz., U.S.

      Dutch-born American astronomer known for his work on the structure and evolution of the Milky Way Galaxy and for his study of “Bok globules,” small dark clouds observable against the background of bright nebulae. Bok suggested that these globules may be condensed clouds of interstellar gas and dust in the process of contracting into stars.

      Bok studied at the universities of Leiden and Groningen (Ph.D. 1932). He then pursued an academic career of research and teaching at Harvard University (1929–57), the Australian National University (1957–66), and the University of Arizona (1966–74), remaining at Arizona as professor emeritus; he had become a U.S. citizen in 1938. He served as director of the Mount Stromlo Observatory (1957–66) in Australia and as director of the Steward Observatory (1966–70) in Arizona. With his wife, Priscilla F. Bok, he wrote the classic work The Milky Way (1941; 5th ed., 1981). Bok served as vice president of the International Astronomical Union (1970–76) and as president of the American Astronomical Society (1972–74).

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Universalium. 2010.

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  • Bok , Bart Jan — (1906–1983) Dutch–American astronomer Bok, who was born at Hoorn in the Netherlands, studied at the universities of Leiden (1924–27) and Groningen (1927–29) and obtained his PhD from Groningen in 1932. He had moved to America in 1929, becoming… …   Scientists

  • Bart J. Bok — Bart Bok Bart Jan Bok (Hoorn, 28 avril 1906 – Tucson, 5 août 1983) était un astronome néerlando américain. Il était né aux Pays Bas et formé dans les universités de Leyde et de Groningue. En 1929, il épousa sa collègue astronome le docteur… …   Wikipédia en Français

  • Bart Jan Bok — Bart Bok Bart Jan Bok (Hoorn, 28 avril 1906 – Tucson, 5 août 1983) était un astronome néerlando américain. Il était né aux Pays Bas et formé dans les universités de Leyde et de Groningue. En 1929, il épousa sa collègue astronome le docteur… …   Wikipédia en Français

  • Bart Bok — Pour les articles homonymes, voir Bok. Bart Jan Bok (Hoorn, 28 avril 1906 – Tucson, 5 août 1983) était un astronome néerlando américain. Sommaire 1 …   Wikipédia en Français

  • Bart Bok — Bartholomeus Bart Jan Bok (* 28. April 1906 in Hoorn, Niederlande; † 5. August 1983 in Tucson, Arizona) war ein in den Niederlanden geborener US amerikanischer Astronom. Er ist bekannt für seine Arbeiten über die Struktur und Evolution der… …   Deutsch Wikipedia

  • Bok-Globule — Globule im H II Gebiet IC 2944 aufgenommen mit der Wide Field and Planetary Camera 2 des Hubble Weltraumteleskops. Globulen sind in der Astronomie räumlich engbegrenzte Staub und Gaswolken, die meist in Sternentstehungsgebieten zu finden sind.… …   Deutsch Wikipedia

  • Bok (lunar crater) — lunar crater data latitude=20.2 N or S=S longitude=171.6 E or W=W diameter=45 km depth= Unknown colong=172 eponym=Priscilla F. Bok Bart J. BokBok is a lunar crater that is located on the far side of the Moon. To the southeast is the crater… …   Wikipedia

  • Bart Bok — Saltar a navegación, búsqueda Bart J. Bok Nacimiento 28 de abril de 1906 Hoorn, Países Bajos …   Wikipedia Español

  • Bok — ist der Familienname folgender Personen: Bart J. Bok (1906–1983), US amerikanischer Astronom Derek Bok (* 1930), US amerikanischer Jurist und Pädagoge Edward W. Bok (1863–1930), US amerikanischer Schriftsteller und Gewinner des Pulitzer Preises… …   Deutsch Wikipedia

  • Bok (Cratère Lunaire) — Pour les articles homonymes, voir Bok. Bok Localisation Astre Lune Coordonnées 20°  12’ …   Wikipédia en Français

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