John A. O'Keefe (astronomer)
id:
john-a-o-keefe-astronomer-190-12463186
title:
John A. O'Keefe (astronomer)
text:
John Aloysius O'Keefe III was an expert in planetary science and astrogeology with the National Aeronautics and Space Administration (NASA) from 1958 to 1995. He and his co-authors, Ann Eckels and Ken Squires, are credited with the discovery that the Earth had a significant third degree zonal spherical harmonic in its gravitational field using U.S. Vanguard 1 satellite data collected in the late 1950s. The Earth's pear shape as it was known became front-page news and was even the subject of a "P
brand slug:
wiki
category slug:
encyclopedia
description:
American astronomer (1916–2000)
original url:
https://en.wikipedia.org/wiki/John_A._O%27Keefe_(astronomer)
date created:
date modified:
2024-04-14T00:39:46Z
main entity:
{"identifier":"Q3809035","url":"https://www.wikidata.org/entity/Q3809035"}
image:
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13
integrity:
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