Jan Oort, the Glossary
Jan Hendrik Oort (or; 28 April 1900 – 5 November 1992) was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy.[1]
Table of Contents
103 relations: Abraham H. Oort, American Academy of Arts and Sciences, American Astronomical Society, American Institute of Physics, American Philosophical Society, Astronomer, Astronomical Society of the Pacific, Astronomische Gesellschaft, Astronomy, Astrophysics, Balzan Prize, Bertil Lindblad, Biographical Memoirs of Fellows of the Royal Society, Bruce Medal, Columbia University, Comet, Crab Nebula, Dark matter, Delaware, Ohio, Dwingeloo Radio Observatory, European Space Agency, Fellow of the Royal Society, Franeker, Frank Schlesinger, French Academy of Sciences, Friesland, Frits Zernike, Galactic Center, Galactic halo, Gelderland, German invasion of the Netherlands, Gold Medal of the Royal Astronomical Society, Gouden Ganzenveer, Grote Reber, Halley Lectures, Halley's Comet, Harvard University, Hendrik C. van de Hulst, Henry Norris Russell Lectureship, Inamori Foundation, International Astronomical Union, Iosif Shklovsky, Jacobus Kapteyn, Janssen Medal (French Academy of Sciences), Jules Verne, Jupiter, Karl Schwarzschild Medal, Kyoto Prize, Leiden, Leiden Observatory, ... Expand index (53 more) »
- Kyoto laureates in Basic Sciences
- People from Franekeradeel
- Presidents of the International Astronomical Union
Abraham H. Oort
Abraham Hans Oort (born 1934 in Leiden, Netherlands) is a Dutch-born American climatologist.
See Jan Oort and Abraham H. Oort
American Academy of Arts and Sciences
The American Academy of Arts and Sciences (The Academy) is one of the oldest learned societies in the United States.
See Jan Oort and American Academy of Arts and Sciences
American Astronomical Society
The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC.
See Jan Oort and American Astronomical Society
American Institute of Physics
The American Institute of Physics (AIP) promotes science and the profession of physics, publishes physics journals, and produces publications for scientific and engineering societies.
See Jan Oort and American Institute of Physics
American Philosophical Society
The American Philosophical Society (APS) is an American scholarly organization and learned society founded in 1743 in Philadelphia that promotes knowledge in the humanities and natural sciences through research, professional meetings, publications, library resources, and community outreach.
See Jan Oort and American Philosophical Society
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth.
Astronomical Society of the Pacific
The Astronomical Society of the Pacific (ASP) is an American scientific and educational organization, founded in San Francisco on February 7, 1889, immediately following the solar eclipse of January 1, 1889.
See Jan Oort and Astronomical Society of the Pacific
Astronomische Gesellschaft
The Astronomische Gesellschaft is an astronomical society established in 1863 in Heidelberg, the second oldest astronomical society after the Royal Astronomical Society.
See Jan Oort and Astronomische Gesellschaft
Astronomy
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos.
Astrophysics
Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena.
Balzan Prize
The International Balzan Prize Foundation awards four annual monetary prizes to people or organizations who have made outstanding achievements in the fields of humanities, natural sciences, culture, as well as for endeavours for peace and the brotherhood of man.
Bertil Lindblad
Bertil Lindblad (Örebro, 26 November 1895 – Saltsjöbaden, outside Stockholm, 25 June 1965) was a Swedish astronomer. Jan Oort and Bertil Lindblad are Foreign associates of the National Academy of Sciences, Presidents of the International Astronomical Union and Recipients of the Gold Medal of the Royal Astronomical Society.
See Jan Oort and Bertil Lindblad
Biographical Memoirs of Fellows of the Royal Society
The Biographical Memoirs of Fellows of the Royal Society is an academic journal on the history of science published annually by the Royal Society.
See Jan Oort and Biographical Memoirs of Fellows of the Royal Society
Bruce Medal
The Catherine Wolfe Bruce Gold Medal is awarded every year by the Astronomical Society of the Pacific for outstanding lifetime contributions to astronomy.
Columbia University
Columbia University, officially Columbia University in the City of New York, is a private Ivy League research university in New York City.
See Jan Oort and Columbia University
Comet
A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing.
Crab Nebula
The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus.
Dark matter
In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field.
Delaware, Ohio
Delaware is a city in and the county seat of Delaware County, Ohio, United States.
See Jan Oort and Delaware, Ohio
Dwingeloo Radio Observatory
The Dwingeloo Radio Observatory is a single-dish radio telescope near the village of Dwingeloo in the northeastern Netherlands.
See Jan Oort and Dwingeloo Radio Observatory
European Space Agency
The European Space Agency (ESA) is a 22-member intergovernmental body devoted to space exploration.
See Jan Oort and European Space Agency
Fellow of the Royal Society
Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural knowledge, including mathematics, engineering science, and medical science".
See Jan Oort and Fellow of the Royal Society
Franeker
Franeker (Frjentsjer) is one of the eleven historical cities of Friesland and capital of the municipality of Waadhoeke.
Frank Schlesinger
Frank Schlesinger (May 11, 1871 – July 10, 1943) was an American astronomer. Jan Oort and Frank Schlesinger are Presidents of the International Astronomical Union and Recipients of the Gold Medal of the Royal Astronomical Society.
See Jan Oort and Frank Schlesinger
French Academy of Sciences
The French Academy of Sciences (French: Académie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research.
See Jan Oort and French Academy of Sciences
Friesland
Friesland (official Fryslân), historically and traditionally known as Frisia, named after the Frisians, is a province of the Netherlands located in the country's northern part.
Frits Zernike
Frits Zernike (16 July 1888 – 10 March 1966) was a Dutch physicist and winner of the Nobel Prize in Physics in 1953 for his invention of the phase-contrast microscope. Jan Oort and Frits Zernike are Foreign Members of the Royal Society and Members of the Royal Netherlands Academy of Arts and Sciences.
See Jan Oort and Frits Zernike
Galactic Center
The Galactic Center is the barycenter of the Milky Way and a corresponding point on the rotational axis of the galaxy.
See Jan Oort and Galactic Center
Galactic halo
A galactic halo is an extended, roughly spherical component of a galaxy which extends beyond the main, visible component.
See Jan Oort and Galactic halo
Gelderland
Gelderland, also known as Guelders in English, is a province of the Netherlands, occupying the centre-east of the country.
German invasion of the Netherlands
The German invasion of the Netherlands (Duitse aanval op Nederland), otherwise known as the Battle of the Netherlands (Slag om Nederland), was a military campaign part of Case Yellow (Fall Gelb), the Nazi German invasion of the Low Countries (Belgium, Luxembourg, and the Netherlands) and France during World War II.
See Jan Oort and German invasion of the Netherlands
Gold Medal of the Royal Astronomical Society
The Gold Medal of the Royal Astronomical Society is the highest award given by the Royal Astronomical Society (RAS). Jan Oort and Gold Medal of the Royal Astronomical Society are Recipients of the Gold Medal of the Royal Astronomical Society.
See Jan Oort and Gold Medal of the Royal Astronomical Society
Gouden Ganzenveer
The Gouden Ganzenveer ("Golden goose quill") is a Dutch cultural award initiated in 1955, given annually to a person or organization of great significance to the written and printed word.
See Jan Oort and Gouden Ganzenveer
Grote Reber
Grote Reber (December 22, 1911 – December 20, 2002) was an American pioneer of radio astronomy, which combined his interests in amateur radio and amateur astronomy.
Halley Lectures
The Halley Lectures are a series of annual public lectures hosted by the University of Oxford, in memory of the astronomer Edmond Halley.
See Jan Oort and Halley Lectures
Halley's Comet
Halley's Comet is the only known short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years.
See Jan Oort and Halley's Comet
Harvard University
Harvard University is a private Ivy League research university in Cambridge, Massachusetts.
See Jan Oort and Harvard University
Hendrik C. van de Hulst
Hendrik Christoffel "Henk" van de Hulst (19 November 1918 – 31 July 2000) was a Dutch astronomer. Jan Oort and Hendrik C. van de Hulst are academic staff of Leiden University, Foreign Members of the Royal Society, Foreign associates of the National Academy of Sciences and Members of the Royal Netherlands Academy of Arts and Sciences.
See Jan Oort and Hendrik C. van de Hulst
Henry Norris Russell Lectureship
The Henry Norris Russell Lectureship is awarded each year by the American Astronomical Society in recognition of a lifetime of excellence in astronomical research.
See Jan Oort and Henry Norris Russell Lectureship
Inamori Foundation
The Inamori Foundation is a private foundation known for its annual announcement of the Kyoto Prize, founded by Kazuo Inamori in 1984.
See Jan Oort and Inamori Foundation
International Astronomical Union
The International Astronomical Union (IAU; Union astronomique internationale, UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation.
See Jan Oort and International Astronomical Union
Iosif Shklovsky
Iosif Samuilovich Shklovsky (Ио́сиф Самуи́лович Шкло́вский; sometimes transliterated Josif, Josif, Shklovskii, Shklovskij) (1 July 1916 – 3 March 1985) was a Soviet astronomer and astrophysicist. Jan Oort and Iosif Shklovsky are Foreign associates of the National Academy of Sciences.
See Jan Oort and Iosif Shklovsky
Jacobus Kapteyn
Prof Jacobus Cornelius Kapteyn FRS FRSE LLD (19 January 1851 – 18 June 1922) was a Dutch astronomer. Jan Oort and Jacobus Kapteyn are Foreign Members of the Royal Society, Members of the Royal Netherlands Academy of Arts and Sciences and Recipients of the Gold Medal of the Royal Astronomical Society.
See Jan Oort and Jacobus Kapteyn
Janssen Medal (French Academy of Sciences)
The Janssen Medal is an astrophysics award presented by the French Academy of Sciences to those who have made advances in this area of science.
See Jan Oort and Janssen Medal (French Academy of Sciences)
Jules Verne
Jules Gabriel Verne (Longman Pronunciation Dictionary.; 8 February 1828 – 24 March 1905) was a French novelist, poet, and playwright.
Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
Karl Schwarzschild Medal
The Karl Schwarzschild Medal, named after the astrophysicist Karl Schwarzschild, is an award presented by the Astronomische Gesellschaft (German Astronomical Society) to eminent astronomers and astrophysicists.
See Jan Oort and Karl Schwarzschild Medal
Kyoto Prize
The is Japan's highest private award for lifetime achievement in the arts and sciences.
Leiden
Leiden (in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands.
Leiden Observatory
Leiden Observatory (Sterrewacht Leiden) is an astronomical institute of Leiden University, in the Netherlands.
See Jan Oort and Leiden Observatory
Leiden University
Leiden University (abbreviated as LEI; Universiteit Leiden) is a public research university in Leiden, Netherlands.
See Jan Oort and Leiden University
Life (magazine)
Life is an American magazine published weekly from 1883 to 1972, as an intermittent "special" until 1978, a monthly from 1978 until 2000, and an online supplement since 2008.
See Jan Oort and Life (magazine)
Light-year
A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km (Scientific notation: 9.4607304725808 × 1012 km), which is approximately 5.88 trillion mi.
Lyman Spitzer
Lyman Spitzer Jr. (June 26, 1914 – March 31, 1997) was an American theoretical physicist, astronomer and mountaineer. Jan Oort and Lyman Spitzer are Foreign Members of the Royal Society and Recipients of the Gold Medal of the Royal Astronomical Society.
See Jan Oort and Lyman Spitzer
Milky Way
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization.
See Jan Oort and National Academy of Sciences
Nazi Germany
Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a totalitarian dictatorship.
Neptune
Neptune is the eighth and farthest known planet from the Sun.
Netherlands
The Netherlands, informally Holland, is a country located in Northwestern Europe with overseas territories in the Caribbean.
Nicholas U. Mayall
Nicholas Ulrich Mayall (May 9, 1906 – January 5, 1993) was an American observational astronomer.
See Jan Oort and Nicholas U. Mayall
O-type star
An O-type star is a hot, blue-white star of spectral type O in the Yerkes classification system employed by astronomers.
Oegstgeest
Oegstgeest is a town and municipality in the province of South Holland in the western Netherlands.
Ohio
Ohio is a state in the Midwestern region of the United States.
Oort cloud
The Oort cloud, sometimes called the Öpik–Oort cloud, is theorized to be a vast cloud of icy planetesimals surrounding the Sun at distances ranging from 2,000 to 200,000 AU (0.03 to 3.2 light-years).
Oort constants
The Oort constants (discovered by Jan Oort) A and B are empirically derived parameters that characterize the local rotational properties of our galaxy, the Milky Way, in the following manner: \begin & A.
See Jan Oort and Oort constants
Oort limit
The Oort limit is a theoretical location at the outer limits of the Oort cloud, where the amount of comets and minor planets orbiting the Sun drops drastically, or drops entirely.
Oxford University Press
Oxford University Press (OUP) is the publishing house of the University of Oxford.
See Jan Oort and Oxford University Press
Parsec
The parsec (symbol: pc) is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to or (AU), i.e..
Perkins Observatory
Perkins Observatory is an astronomical observatory in Delaware, Ohio.
See Jan Oort and Perkins Observatory
Pluto
Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune.
Point Loma Nazarene University
Point Loma Nazarene University (PLNU) is a private Christian liberal arts college with its main campus on the Point Loma oceanfront in San Diego, California, United States.
See Jan Oort and Point Loma Nazarene University
Polarization (waves)
italics (also italics) is a property of transverse waves which specifies the geometrical orientation of the oscillations.
See Jan Oort and Polarization (waves)
Princeton University
Princeton University is a private Ivy League research university in Princeton, New Jersey.
See Jan Oort and Princeton University
Prix Jules Janssen
The Prix Jules Janssen is the highest award of the Société astronomique de France (SAF), the French astronomical society.
See Jan Oort and Prix Jules Janssen
Radio astronomy
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.
See Jan Oort and Radio astronomy
Radio Kootwijk
Radio Kootwijk is a hamlet in the Dutch municipality of Apeldoorn.
See Jan Oort and Radio Kootwijk
Reichskommissariat Niederlande
The Reichskommissariat Niederlande was the civilian occupation regime set up by Germany in the German-occupied Netherlands during World War II.
See Jan Oort and Reichskommissariat Niederlande
Rotterdam
Rotterdam (lit. "The Dam on the River Rotte") is the second-largest city in the Netherlands after the national capital of Amsterdam.
Royal Academy of Arts
The Royal Academy of Arts (RA) is an art institution based in Burlington House in Piccadilly in London, England.
See Jan Oort and Royal Academy of Arts
Royal Netherlands Academy of Arts and Sciences
The Royal Netherlands Academy of Arts and Sciences (Koninklijke Nederlandse Akademie van Wetenschappen, KNAW) is an organization dedicated to the advancement of science and literature in the Netherlands.
See Jan Oort and Royal Netherlands Academy of Arts and Sciences
Rudolph Cleveringa
Rudolph Pabus Cleveringa (2 April 1894, Appingedam, Netherlands – 15 December 1980, Oegstgeest, Netherlands) was a professor of law at Leiden University. Jan Oort and Rudolph Cleveringa are academic staff of Leiden University and Members of the Royal Netherlands Academy of Arts and Sciences.
See Jan Oort and Rudolph Cleveringa
Rural area
In general, a rural area or a countryside is a geographic area that is located outside towns and cities.
Sagittarius (constellation)
Sagittarius is one of the constellations of the zodiac and is located in the Southern celestial hemisphere.
See Jan Oort and Sagittarius (constellation)
Société astronomique de France
The Société astronomique de France (SAF), the French astronomical society, is a non-profit association in the public interest organized under French law (Association loi de 1901).
See Jan Oort and Société astronomique de France
South Holland
South Holland (Zuid-Holland) is a province of the Netherlands with a population of over 3.8 million as of January 2023 and a population density of about, making it the country's most populous province and one of the world's most densely populated areas.
See Jan Oort and South Holland
Subrahmanyan Chandrasekhar
Subrahmanyan Chandrasekhar (19 October 1910 – 21 August 1995) was an Indian-American theoretical physicist who made significant contributions to the scientific knowledge about the structure of stars, stellar evolution and black holes. Jan Oort and Subrahmanyan Chandrasekhar are Recipients of the Gold Medal of the Royal Astronomical Society.
See Jan Oort and Subrahmanyan Chandrasekhar
Sun
The Sun is the star at the center of the Solar System.
See Jan Oort and Sun
Supernova
A supernova (supernovae or supernovas) is a powerful and luminous explosion of a star.
Synchrotron radiation
Synchrotron radiation (also known as magnetobremsstrahlung radiation) is the electromagnetic radiation emitted when relativistic charged particles are subject to an acceleration perpendicular to their velocity.
See Jan Oort and Synchrotron radiation
The New York Times
The New York Times (NYT) is an American daily newspaper based in New York City.
See Jan Oort and The New York Times
United States
The United States of America (USA or U.S.A.), commonly known as the United States (US or U.S.) or America, is a country primarily located in North America.
See Jan Oort and United States
Universe
The universe is all of space and time and their contents.
University of Groningen
The University of Groningen (abbreviated as UG; Rijksuniversiteit Groningen, abbreviated as RUG) is a public research university of more than 30,000 students in the city of Groningen in the Netherlands.
See Jan Oort and University of Groningen
Utrecht University
Utrecht University (UU; Universiteit Utrecht, formerly Rijksuniversiteit Utrecht) is a public research university in Utrecht, Netherlands.
See Jan Oort and Utrecht University
Vetlesen Prize
The Vetlesen Prize is a prize in geology awarded jointly by Columbia University's Lamont–Doherty Earth Observatory and the G. Unger Vetlesen Foundation.
See Jan Oort and Vetlesen Prize
Wageningen University & Research
Wageningen University & Research (also known as Wageningen UR; abbreviation: WUR) is a public research university in Wageningen, Netherlands, specializing in life sciences with a focus on agriculture, technical and engineering subjects.
See Jan Oort and Wageningen University & Research
Westerbork Synthesis Radio Telescope
The Westerbork Synthesis Radio Telescope (WSRT) is an aperture synthesis interferometer built on the site of the former World War II Nazi detention and transit camp Westerbork, north of the village of Westerbork, Midden-Drenthe, in the northeastern Netherlands.
See Jan Oort and Westerbork Synthesis Radio Telescope
Wilhelmus
"Wilhelmus van Nassouwe", usually known just as "Wilhelmus" (italic;; English translation: "The Wilhelmus"), is the national anthem of both the Netherlands and its sovereign state, the Kingdom of the Netherlands.
Willem de Sitter
Willem de Sitter (6 May 1872 – 20 November 1934) was a Dutch mathematician, physicist, and astronomer. Jan Oort and Willem de Sitter are academic staff of Leiden University, Foreign associates of the National Academy of Sciences, Members of the Royal Netherlands Academy of Arts and Sciences, Presidents of the International Astronomical Union, Recipients of the Gold Medal of the Royal Astronomical Society and university of Groningen alumni.
See Jan Oort and Willem de Sitter
Yale University
Yale University is a private Ivy League research university in New Haven, Connecticut.
See Jan Oort and Yale University
Yale University Observatory
The Yale University Observatory, also known as the Leitner Family Observatory and Planetarium, is an astronomical observatory owned and operated by Yale University, and maintained for student use.
See Jan Oort and Yale University Observatory
Zenith telescope
A zenith telescope is a type of telescope that is designed to point straight up at or near the zenith.
See Jan Oort and Zenith telescope
1691 Oort
1691 Oort, provisional designation, is a rare-type carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 33 kilometers in diameter.
See also
Kyoto laureates in Basic Sciences
- Alfred G. Knudson
- André Weil
- Chushiro Hayashi
- Claude Shannon
- Daniel H. Janzen
- Edward Norton Lorenz
- Edward Witten
- Elliott H. Lieb
- Eugene Parker
- G. Evelyn Hutchinson
- Graham Farquhar
- Hiroo Kanamori
- Hirotugu Akaike
- Israel Gelfand
- James Gunn (astronomer)
- Jan Oort
- Jane Goodall
- John Maynard Smith
- Kiyosi Itô
- Kyoto Prize in Basic Sciences
- László Lovász
- Mario Capecchi
- Masaki Kashiwara
- Masatoshi Nei
- Michel Mayor
- Mikhael Gromov (mathematician)
- Noam Chomsky
- Peter and Rosemary Grant
- Rashid Sunyaev
- Robert G. Roeder
- Simon A. Levin
- Tasuku Honjo
- Tony Pawson (biochemist)
- W. D. Hamilton
- Walter Jakob Gehring
- Walter Munk
- Yasutomi Nishizuka
- Yoshinori Ohsumi
People from Franekeradeel
- Adelbrik Adelen
- Adolphus Ypey
- Auke Adema
- Eise Eisinga
- François Hemsterhuis
- Hessel Hermana
- Hidde Sjoerds de Vries
- Jan Jacob Schultens
- Jan Jansz. de Stomme
- Jan Oort
- Jelle Zijlstra
- Jenning Huizenga
- Johan Valckenaer
- Johannes Belksma
- Pia Dijkstra
- Rein Strikwerda
- Renier van Tzum
- Rinse Zijlstra
- Sebald Justinus Brugmans
- Sicco van Goslinga
- Sietse Fritsma
- Sippie Tigchelaar
- Sixtinus Amama
- Sybren van Tuinen
- Tjalling van den Bosch
- Tjerk Hiddes de Vries
Presidents of the International Astronomical Union
- Adriaan Blaauw
- Alexandr Boyarchuk
- André-Louis Danjon
- Arthur Eddington
- Bengt Strömgren
- Benjamin Baillaud
- Bertil Lindblad
- Catherine Cesarsky
- Debra Elmegreen
- Ernest Esclangon
- Ewine van Dishoeck
- Franco Pacini
- Frank Schlesinger
- Frank Watson Dyson
- Harold Spencer Jones
- Jan Oort
- Jorge Sahade
- Leo Goldberg
- Lodewijk Woltjer
- Norio Kaifu
- Otto Heckmann
- Otto Struve
- Pol Swings
- Robert Hanbury Brown
- Robert Kraft (astronomer)
- Robert Williams (astronomer)
- Ronald Ekers
- Silvia Torres-Peimbert
- Vainu Bappu
- Viktor Ambartsumian
- Willem de Sitter
- William Wallace Campbell
- Yoshihide Kozai
References
[1] https://en.wikipedia.org/wiki/Jan_Oort
Also known as Jan H. Oort, Jan Hendrick Oort, Jan Hendrik Oort, Jan Hendrik Ort, Oort, Oort, Jan Hendrik.
, Leiden University, Life (magazine), Light-year, Lyman Spitzer, Milky Way, National Academy of Sciences, Nazi Germany, Neptune, Netherlands, Nicholas U. Mayall, O-type star, Oegstgeest, Ohio, Oort cloud, Oort constants, Oort limit, Oxford University Press, Parsec, Perkins Observatory, Pluto, Point Loma Nazarene University, Polarization (waves), Princeton University, Prix Jules Janssen, Radio astronomy, Radio Kootwijk, Reichskommissariat Niederlande, Rotterdam, Royal Academy of Arts, Royal Netherlands Academy of Arts and Sciences, Rudolph Cleveringa, Rural area, Sagittarius (constellation), Société astronomique de France, South Holland, Subrahmanyan Chandrasekhar, Sun, Supernova, Synchrotron radiation, The New York Times, United States, Universe, University of Groningen, Utrecht University, Vetlesen Prize, Wageningen University & Research, Westerbork Synthesis Radio Telescope, Wilhelmus, Willem de Sitter, Yale University, Yale University Observatory, Zenith telescope, 1691 Oort.