Pedro E. Zadunaisky Explained

Pedro Elías Zadunaisky (December 10, 1917 – October 7, 2009) was an Argentine astronomer and mathematician who plotted the orbit of Saturn's most-distant moon, Phoebe, as well as several comets including Halley's Comet, and various satellites including Explorer I.

Zadunaisky was born in Rosario, Santa Fe. He was once a senior astronomer and a mathematician at the Smithsonian Astrophysical Observatory and at NASA's Goddard Space Flight Center.[1] [2] 4617 Zadunaisky is an asteroid named in his honor. He died on October 7, 2009, at the age of 91.[3] He wrote the book "A Guide to Celestial Mechanics" in 1961.[4]

Notes and References

  1. News: Astronomy pioneer Pedro Elias Zadunaisky dies . The San Francisco Chronicle . 9 October 2009.
  2. News: Orellana, Vanessa Hand. Pedro Elias Zadunaisky, 1917-2009: Mathematician and astronomer aided U.S. in space race with Russians. Chicago Tribune. Associated Press. 9 October 2009. 12 October 2009. dead. https://web.archive.org/web/20121024124832/http://www.chicagotribune.com/news/chi-obit-zadunaiskyoct09,0,1551146.story. 24 October 2012.
  3. Web site: Pedro Elias Zadunaisky - Celebrity Death - Obituaries at . Tributes.com . 2009-10-07 . 2022-10-09.
  4. Web site: Archived copy . 2011-05-03 . https://web.archive.org/web/20110902223805/http://www.conae.gov.ar/zad/index.html . 2011-09-02 . dead .

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