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Jan Oort
Table of Contents
Introduction References & Edit History Quick Facts & Related Topics
Quizzes
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
Related Questions
Read Next
Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)
How Fast Is the Universe Expanding?
Planet Earth and lunar moon from space
Where Did the Moon Come From?
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
Arrangement of the phases of the moon in total eclipse with Blood Moon
9 Celestial Omens
1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
6 Questions About the Sun Answered
Discover
African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.
Timeline of the American Civil Rights Movement
Demystified - Do Lemmings Really Commit Mass Suicide? illustration
Do Lemmings Really Commit Mass Suicide?
The Lost Colony of Roanoke, North Carolina, where 115 people mysteriously disappeared c. 1590. John White discovers the word Croatoan carved onto a tree upon his return to the deserted Roanoke Colony in 1590
The Lost Colony of Roanoke
Black widow spider
9 of the World’s Deadliest Spiders
Panoramic view at sunrise of moai, Ahu Tongariki, Easter Island (Rapa Nui), Chile
6 Lost Civilizations
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
Which Religion Is the Oldest?
Adolf Hitler (Nazi, nazism, German leader).
9 Things You Might Not Know About Adolf Hitler

Jan Oort: Facts & Related Content

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Facts

Also Known As Jan Hendrick Oort • Jan Hendrik Oort
Born April 28, 1900 • Netherlands
Died November 5, 1992 (aged 92) • Leiden • Netherlands
Subjects Of Study Milky Way Galaxy • Oort cloud • Oort’s constant • rotation
Fred L. Whipple
American astronomer
Jacobus Cornelius Kapteyn
Dutch astronomer
Bart J. Bok
American astronomer
Nicolaus Copernicus
Nicolaus Copernicus
Polish astronomer
Galileo
Galileo
Italian philosopher, astronomer and mathematician
Harlow Shapley
American astronomer
Moon, Earth, and Sun diagrammed in Aristarchus's On the Sizes and Distances of the Sun and Moon
Aristarchus of Samos
Greek astronomer
Freeman, Ken
Ken Freeman
Australian astronomer
illustration of Robert Hooke's law of elasticity of materials
Robert Hooke
British scientist
André-Louis Danjon
French astronomer
William Wilson Morgan
American astronomer
Christiaan Huygens
Christiaan Huygens
Dutch scientist and mathematician
Gerard Peter Kuiper
American astronomer
Maarten Schmidt
Dutch-American astronomer
Willem de Sitter
Dutch mathematician and astronomer
Hendrik Christoffel van de Hulst
Dutch astronomer
Dirk Brouwer
American astronomer
Willebrord Snell
Dutch astronomer and mathematician
Johannes Fabricius
Dutch astronomer
Alvan Graham Clark
American astronomer

Related Quizzes and Features

Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy