John Huchra

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John Peter Huchra (

Center for Astrophysics | Harvard & Smithsonian.[2] He was also a former chair of the United States National Committee for the International Astronomical Union.[2] and past president of the American Astronomical Society.[3][4]

Huchra was born on December 23, 1948, in

Center for Astrophysics | Harvard & Smithsonian in 1976 and remained there for the rest of his career.[6]

Together with fellow astronomers Marc Aaronson and Jeremy Mould, Huchra announced that based on their analysis of the brightness and rotational speed of certain spiral galaxies that the universe was nine billion years old, half the age that most astronomers had previously thought.[6]

In 1986,

Great Wall, a structure measuring 600 million light years in length and 250 million light years in width.[8][9][10][11][12]
This is the second largest known super-structure in the universe.

The

Huchra's Lens.[13][14]

References

  1. ^ Obituary, Boston.com
  2. ^
    Center for Astrophysics | Harvard & Smithsonian
  3. PMID 21068817
    .
  4. doi:10.1063/PT.3.1305
    .
  5. ^ Dr. John P. Huchra, Class of 1966, Ridgefield Park Junior-Senior High School Alumni Foundation. Accessed November 15, 2017. "Dr. Huchra, after receiving his diploma at Ridgefield Park High School went on to receive his B.S. degree in Physics at M.I.T. in 1970, and his Ph.D. in Astronomy from Cal Tech in 1976."
  6. ^ a b Overbye, Dennis. "John Huchra Dies at 61; Maps Altered Ideas on Universe", The New York Times, October 13, 2010. Accessed October 14, 2010.
  7. ^
    doi:10.1086/184625
    .
  8. ^ Frontline, Jan 1, 2010, "In 1989, Margaret Geller and John Huchra, on the basis of redshift survey data, discovered the presence of the Great (Galactic) Wall..."
  9. ^ Booth, William (November 18, 1989). "Vast Sheet of Galaxies Found In the Far Reaches of Space;'Great Wall' Largest Structure Detected in Universe". Archived from the original on December 1, 2017. Retrieved July 6, 2017.
  10. The San Diego Union. September 11, 2002. Archived from the original
    on June 29, 2011. Retrieved July 6, 2017.
  11. ^ Charles Choi. That Wall in China Is Nothing, Science, 24 October 2003
  12. ISBN 9780201328400
    . Retrieved 2012-05-22.
  13. doi:10.1086/113777
    .
  14. ISBN 978-0-521-89936-9
    . Retrieved 2011-07-15.

External links
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