This article is about a Dutch astronomer. For the asteroid named for him, see 1965 van de Kamp.
Peter van de Kamp
Peter van de Kamp circa 1973
Born
(1901-12-26)December 26, 1901
Kampen, Netherlands
Died
May 18, 1995(1995-05-18) (aged 93)
Amsterdam, Netherlands
Nationality
Dutch
Alma mater
University of Utrecht, University of California, Berkeley
Known for
Astrometry
Awards
Janssen Prize
Scientific career
Fields
astronomy
Institutions
Sproul Observatory, University of Amsterdam
Piet van de Kamp (December 26, 1901 – May 18, 1995), known as Peter van de Kamp in the United States, was a Dutch astronomer who lived in the United States most of his life. He was professor of astronomy at Swarthmore College and director of the college's Sproul Observatory from 1937 until 1972. He specialized in astrometry, studying parallax and proper motions of stars. He came to public attention in the 1960s when he announced that Barnard's star had a planetary system based on observed "wobbles" in its motion, but this is now known to be false.[1][2]
On November 14, 2018, the Red Dots project announced that Barnard's star hosts an exoplanet at least 3.2 times as massive as Earth, though this does not match either of the planets he had claimed.[3] In 2021, even this planet's existence was questioned.[4]
^Cite error: The named reference Swathmore was invoked but never defined (see the help page).
^Kurster, M.; et al. (2003). "The low-level radial velocity variability in Barnard's star (= GJ 699). Secular acceleration, indications for convective redshift, and planet mass limits". Astronomy & Astrophysics. 403 (3): 1077–1087. arXiv:astro-ph/0303528. Bibcode:2003A&A...403.1077K. doi:10.1051/0004-6361:20030396. S2CID 16738100.
^Washington Post: "Signs of a ‘super Earth’ discovered around a nearby star"
^Lubin, Jack; Robertson, Paul; Stefansson, Gudmundur; Ninan, Joe; Mahadevan, Suvrath; Endl, Michael; Ford, Eric; Wright, Jason T.; Beard, Corey; Bender, Chad; Cochran, William D.; Diddams, Scott A.; Fredrick, Connor; Halverson, Samuel; Kanodia, Shubham; Metcalf, Andrew J.; Ramsey, Lawrence; Roy, Arpita; Schwab, Christian; Terrien, Ryan (2021), Stellar Activity Manifesting at a One Year Alias Explains Barnard b as a False Positive, arXiv:2105.07005
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dwarf. Kaj Strand of the Sproul Observatory, under the direction of PetervandeKamp, made the first such claim in 1942 using observations to detect tiny...
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