Zaccheus Daniel

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Zaccheus Daniel (* 1874 ; † 1964 ) was an American astronomer .

Daniel worked since 1903 together with Henry Norris Russell on Halsted Observatory of Princeton University , where he began observations of variable stars. Already in June 1907 Daniel discovered the bright comet C / 1907 L2 (Daniel) , which dominated the reporting of the Scientific American in the summer of 1907 .

Daniel discovered the periodic comet 33P / Daniel on December 7, 1909 .

From 1910 he worked at the Allegheny Observatory of the University of Pittsburgh .

literature

  • J. McKeen Cattell, Jaques Cattell (Eds.): American Men of Science. A Biographical Directory. 5th ed. Science Press, New York 1933

Web links

Individual evidence

  • Henry Norris Russell: dean of American astronomers by David H. DeVorkin ( Online )
  • The Afro-American Dec 18, 1909 ( Online )
  1. ^ RA Jarrell: The 1910 Solar Conference and cooperation in stellar spectroscopy. Journal of Astronomical History and Heritage, Vol. 13 (2010), No. 2, p. 127-138. (Z. Daniel: S. 133, bibcode : 2010JAHH ... 13..127J )
personal data
SURNAME Daniel, Zaccheus
BRIEF DESCRIPTION American astronomer
DATE OF BIRTH 1874
DATE OF DEATH 1964