John Johnson (astronomer)

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John Asher Johnson
Jj bio pic.png
John A. Johnson at the 2012 Cool Stars Meeting in Barcelona
Born Albuquerque, New Mexico
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] He is the principal investigator of the Miniature Exoplanet Radial Velocity Array (MINERVA), a ground-based robotic search for exoplanets.[3]


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