John Johnson (astronomer)

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John Asher Johnson
John A. Johnson astronomer.jpg
Born St. Louis, Missouri
Residence Cambridge, Massachusetts
Citizenship United States of America
Nationality American
Fields Astronomy
Institutions California Institute of Technology
Harvard University
Alma mater Missouri University of Science and Technology
University of California at Berkeley
Doctoral advisor Geoffrey Marcy
Known for Exoplanet research
Notable awards Sloan Fellowship (2012)
Newton Lacy Pierce Prize (2012)
Harvard Astronomy page

John Asher Johnson is an American astrophysicist and professor of astronomy at Harvard. He was a formerly a professor at the California Institute of Technology and a researcher with NASA's Exoplanet Science Research Institute.

In 2012 Johnson's team discovered three exoplanets, including the smallest one found to date, orbiting a red dwarf using the Kepler orbital telescope.[1] A subsequent study used the host star's similarity to Barnard's star and observations from the Keck Observatory to determine more information about the system and the size of its three planets.[2]


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