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Encyclopedia > Robert Trumpler

Robert Julius Trumpler (October 2, 1886 – September 10, 1956) was a Swiss-American astronomer.


He was born in Zurich. In 1915, he came to the United States to take a position at Allegheny Observatory, and later went to Lick Observatory.


He is best known for his work on galactic clusters, demonstrating the phenomenon of absorption of light (extinction) by interstellar dust.


A crater on Mars is named in his honour.


External links

  • National Academy of Sciences biography (http://www.nap.edu/readingroom/books/biomems/rtrumpler.html)

  Results from FactBites:
 
Trumpler, Robert Julius (1886-1956) (240 words)
Trumpler was born in Zürich and studied there and in Germany at Göttingen.
At the Allegheny Observatory in Pennsylvania, Trumpler noted that galactic star clusters contain an irregular distribution of different classes of stars, and these observations paved the way for later theories about stellar evolution.
Trumpler's hypothesis, made in 1924, did not gain real support until the return of the photographs taken by Mariner 9 probe, more than 50 years later.
  More results at FactBites »


 

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