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Jacobus Kapteyn
Sign in to saveAlso known as Jacobus Cornelius Kapteyn, Jacobus Cornelius Kapteijn, J. C. Kapteijn
Dutch astronomer, best known for his extensive studies of the Milky Way and as the first discoverer of evidence for galactic rotation (1851-1922)
OverviewAI-generated
Jacobus Cornelius Kapteyn (1851–1922) was a Dutch astronomer, physicist, and university teacher. Born in Barneveld, Utrecht, he received his education at Utrecht University and held a doctorate. His professional career included positions at the Leiden Observatory and the University of Groningen, where he worked in the field of astronomy. He passed away in Amsterdam.
Kapteyn was a member of several prestigious scientific bodies, including the Royal Society, the Saint Petersburg Academy of Sciences, the French Academy of Sciences, and the Royal Swedish Academy of Sciences. He received multiple awards, such as the Gold Medal of the Royal Astronomical Society, the Bruce Medal, the James Craig Watson Medal, and the title of Fellow of the Royal Society of Edinburgh.
Among his students were Jan Hendrik Oort, Willem de Sitter, Jean Jacques Raimond, Jr., and Pieter Johannes van Rhijn. His published works include *Publications of the Astronomical Laboratory at Groningen, Issues 11-14*.
Synthesized by Vinony from 29 facts across 6 sources: Wikidata, Open Library, MusicBrainz, Crossref, Vinony collections, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Person · Open Library
- Works
- 1
Top works
- Publications of the Astronomical Laboratory at Groningen, Issues 11-14
via Open Library + Wikidata
Recent publications · Crossref
5 total works indexed
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<scp>II</scp>
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<scp>II</scp>
) perchlorate
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via Crossref · CC0
Key facts
- Born
- Jacobus Cornelius Kapteyn , ( 1851-01-19 ) 19 January 1851, Barneveld , Netherlands
- Died
- 18 June 1922 (1922-06-18) (aged 71), Amsterdam , Netherlands
- Alma mater
- University of Utrecht
- Known for
- discovery of evidence for galactic rotation
- Awards
- Bruce Medal 1913
- Fields
- Astronomy
via Wikipedia infobox
~5 min read
Encyclopedic overview
Jacobus Kapteyn on the occasion of his 40th anniversary as professor in Groningen. Sir David Gill in background. Painting by Jan Veth. Jacobus Cornelius Kapteyn (19 January 1851 – 18 June 1922) was a Dutch astronomer. He carried out extensive studies of the Milky Way. He found that the apparent movement of stars was not randomly distributed but had two preferential directions: the two star streams. This discovery was later reinterpreted as evidence for galactic rotation. Kapteyn also suggested that these stellar velocities could be used to find the amount of non-luminous matter in the galaxy, which his student, Jan Oort, measured in 1932, referring to it as "invisible matter".
Biography
Excerpted from Wikipedia’s “Jacobus Kapteyn” article, available under the CC BY-SA 4.0 licence.