Definitions for oort
oort

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Oort, Jan Hendrix Oortnoun

   Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992)

WikipediaRate this definition:0.0 / 0 votes

1. Oort

   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. His New York Times obituary called him "one of the century's foremost explorers of the universe"; the European Space Agency website describes him as "one of the greatest astronomers of the 20th century" and states that he "revolutionised astronomy through his ground-breaking discoveries." In 1955, Oort's name appeared in Life magazine's list of the 100 most famous living people. He has been described as "putting the Netherlands in the forefront of postwar astronomy."Oort determined that the Milky Way rotates and overturned the idea that the Sun was at its center. He also postulated the existence of the mysterious invisible dark matter in 1932, which is believed to make up roughly 84.5% of the total matter in the Universe and whose gravitational pull causes "the clustering of stars into galaxies and galaxies into connecting strings of galaxies". He discovered the galactic halo, a group of stars orbiting the Milky Way but outside the main disk. Additionally Oort is responsible for a number of important insights about comets, including the realization that their orbits "implied there was a lot more solar system than the region occupied by the planets."The Oort cloud, the Oort constants, and the asteroid 1691 Oort were all named after him.

ChatGPTRate this definition:0.0 / 0 votes

1. oort

   Oort is a term most commonly associated with the concept of Oort cloud in astronomy. Named after Jan Oort, a Dutch astronomer, the Oort Cloud is a theoretical spherical cloud of predominantly icy planetesimals believed to surround the Sun to as far as somewhere between 50,000 and 200,000 astronomical units. It is considered the source of long-period comets.

Matched Categories

1. • Astronomer

Usage in printed sourcesFrom: 

1. [["1686","1"],["1775","1"],["1782","1"],["1796","1"],["1801","1"],["1802","1"],["1805","1"],["1806","1"],["1808","2"],["1809","2"],["1812","2"],["1813","5"],["1817","1"],["1819","4"],["1820","1"],["1824","2"],["1825","1"],["1827","1"],["1828","1"],["1829","1"],["1831","1"],["1833","1"],["1834","5"],["1835","1"],["1836","2"],["1837","1"],["1838","1"],["1839","1"],["1840","7"],["1841","4"],["1842","13"],["1843","1"],["1844","23"],["1846","8"],["1847","1"],["1848","5"],["1849","1"],["1850","2"],["1851","2"],["1852","6"],["1854","15"],["1855","1"],["1856","16"],["1857","4"],["1858","2"],["1859","5"],["1860","6"],["1861","2"],["1862","3"],["1863","1"],["1864","2"],["1865","2"],["1866","6"],["1867","2"],["1868","3"],["1869","2"],["1870","4"],["1871","3"],["1872","2"],["1873","2"],["1874","1"],["1875","2"],["1876","2"],["1877","3"],["1878","1"],["1879","3"],["1880","3"],["1881","1"],["1882","2"],["1884","3"],["1886","1"],["1887","7"],["1888","2"],["1889","2"],["1890","3"],["1891","2"],["1892","3"],["1893","10"],["1894","1"],["1896","2"],["1897","1"],["1898","2"],["1899","1"],["1900","13"],["1901","3"],["1902","6"],["1903","4"],["1904","4"],["1905","9"],["1906","4"],["1907","3"],["1908","7"],["1909","5"],["1910","4"],["1911","7"],["1912","5"],["1913","5"],["1915","2"],["1916","6"],["1917","2"],["1918","3"],["1919","4"],["1920","11"],["1921","6"],["1922","3"],["1923","3"],["1924","7"],["1925","3"],["1926","11"],["1927","7"],["1928","18"],["1929","11"],["1930","11"],["1931","13"],["1932","12"],["1933","11"],["1934","6"],["1935","5"],["1936","17"],["1937","13"],["1938","12"],["1939","8"],["1940","5"],["1941","10"],["1942","21"],["1943","7"],["1944","14"],["1945","8"],["1946","10"],["1947","7"],["1948","10"],["1949","19"],["1950","19"],["1951","24"],["1952","12"],["1953","16"],["1954","8"],["1955","21"],["1956","12"],["1957","14"],["1958","15"],["1959","19"],["1960","6"],["1961","15"],["1962","11"],["1963","19"],["1964","26"],["1965","20"],["1966","25"],["1967","30"],["1968","33"],["1969","32"],["1970","19"],["1971","24"],["1972","21"],["1973","60"],["1974","20"],["1975","35"],["1976","17"],["1977","35"],["1978","24"],["1979","26"],["1980","20"],["1981","25"],["1982","16"],["1983","45"],["1984","19"],["1985","31"],["1986","28"],["1987","36"],["1988","18"],["1989","25"],["1990","21"],["1991","18"],["1992","26"],["1993","19"],["1994","27"],["1995","16"],["1996","24"],["1997","20"],["1998","25"],["1999","26"],["2000","60"],["2001","33"],["2002","47"],["2003","40"],["2004","50"],["2005","21"],["2006","37"],["2007","42"],["2008","56"]]

How to pronounce oort?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say oort in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of oort in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of oort in Pythagorean Numerology is: 5

Examples of oort in a Sentence

1. Sam Deen:

   Based on the given absolute magnitude, and given how exceptionally red it looked in 2014 precovery images from CFHT (the g - r color was 0.9, and r - i was 0.5!) I would estimate at an albedo of 0.01-0.08 a diameter of 130-370 kilometers (nominally 160) which puts it on a similar scale, if not larger than, Sarabat's huge comet C/1729 P1, and almost undoubtedly the largest Oort Cloud object ever discovered- almost in dwarf planet territory! i have little doubt in my mind that as this gets closer to the sun, it will begin displaying the coma and tail typical of every other object yet seen in its orbit.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=oort
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Oort
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=oort