129th meridian east

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In Australia the meridian defines the eastern border of Western Australia with the Northern Territory and South Australia. 129th meridian Aus.svg
In Australia the meridian defines the eastern border of Western Australia with the Northern Territory and South Australia.

The meridian 129° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

Longitude A geographic coordinate that specifies the east-west position of a point on the Earths surface

Longitude, is a geographic coordinate that specifies the east–west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians connect points with the same longitude. By convention, one of these, the Prime Meridian, which passes through the Royal Observatory, Greenwich, England, was allocated the position of 0° longitude. The longitude of other places is measured as the angle east or west from the Prime Meridian, ranging from 0° at the Prime Meridian to +180° eastward and −180° westward. Specifically, it is the angle between a plane through the Prime Meridian and a plane through both poles and the location in question.

North Pole Northern point where the Earths axis of rotation intersects its surface

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.

Arctic Ocean The smallest and shallowest of the worlds five major oceans, located in the north polar regions

The Arctic Ocean is the smallest and shallowest of the world's five major oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea or simply the Arctic Sea, classifying it a mediterranean sea or an estuary of the Atlantic Ocean. It is also seen as the northernmost part of the all-encompassing World Ocean.

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The 129th meridian east forms a great circle with the 51st meridian west.

Great circle intersection of the sphere and a plane which passes through the center point of the sphere

A great circle, also known as an orthodrome, of a sphere is the intersection of the sphere and a plane that passes through the center point of the sphere. A great circle is the largest circle that can be drawn on any given sphere. Any diameter of any great circle coincides with a diameter of the sphere, and therefore all great circles have the same center and circumference as each other. This special case of a circle of a sphere is in opposition to a small circle, that is, the intersection of the sphere and a plane that does not pass through the center. Every circle in Euclidean 3-space is a great circle of exactly one sphere.

51st meridian west

The meridian 51° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.

In Australia, the meridian defines the eastern border of Western Australia, and the western borders of the Northern Territory and South Australia. The border of Western Australia meets the Northern Territory border and South Australian border at the 26th parallel south, at what is known as Surveyor Generals Corner. [1]

Australia Country in Oceania

Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. The population of 25 million is highly urbanised and heavily concentrated on the eastern seaboard. Australia's capital is Canberra, and its largest city is Sydney. The country's other major metropolitan areas are Melbourne, Brisbane, Perth and Adelaide.

Western Australia border

The Western Australian border was originally designated as 129th meridian east longitude. However, the border marked on the ground is some distance from this line. Kununurra is the closest town to the Western Australian border, being about 25 km west of the border. The closest settlement is Border Village, 1,734 km to the south on the South Australian side of the border, on Eyre Highway.

Northern Territory federal territory of Australia

The Northern Territory is an Australian territory in the central and central northern regions of Australia. It shares borders with Western Australia to the west, South Australia to the south, and Queensland to the east. To the north, the territory looks out to the Timor Sea, the Arafura Sea and the Gulf of Carpentaria, including Western New Guinea and other Indonesian islands. The NT covers 1,349,129 square kilometres (520,902 sq mi), making it the third-largest Australian federal division, and the 11th-largest country subdivision in the world. It is sparsely populated, with a population of only 246,700, making it the least-populous of Australia's eight states and major territories, with fewer than half as many people as Tasmania.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 129th meridian east passes through:

South Pole Southern point where the Earths axis of rotation intersects its surface

The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface. It is the southernmost point on the surface of the Earth and lies on the opposite side of the Earth from the North Pole.

Co-ordinates Country, territory or sea Notes
90°0′N129°0′E / 90.000°N 129.000°E / 90.000; 129.000 (Arctic Ocean) Arctic Ocean
77°21′N129°0′E / 77.350°N 129.000°E / 77.350; 129.000 (Laptev Sea) Laptev Sea
73°6′N129°0′E / 73.100°N 129.000°E / 73.100; 129.000 (Russia) Flag of Russia.svg  Russia Sakha Republic — islands of the Lena Delta and the mainland
Amur Oblast — from 55°30′N129°0′E / 55.500°N 129.000°E / 55.500; 129.000 (Amur Oblast)
49°27′N129°0′E / 49.450°N 129.000°E / 49.450; 129.000 (China) Flag of the People's Republic of China.svg  People's Republic of China Heilongjiang
Jilin — from 43°31′N129°0′E / 43.517°N 129.000°E / 43.517; 129.000 (Jilin)
42°6′N129°0′E / 42.100°N 129.000°E / 42.100; 129.000 (North Korea) Flag of North Korea.svg  North Korea
40°28′N129°0′E / 40.467°N 129.000°E / 40.467; 129.000 (Sea of Japan) Sea of Japan
37°43′N129°0′E / 37.717°N 129.000°E / 37.717; 129.000 (South Korea) Flag of South Korea.svg  South Korea Passing Just West of Busan
35°4′N129°0′E / 35.067°N 129.000°E / 35.067; 129.000 (East China Sea) East China Sea Korea Strait — passing just west of the island of Tsushima Island, Nagasaki Prefecture, Flag of Japan.svg  Japan (at 34°8′N129°10′E / 34.133°N 129.167°E / 34.133; 129.167 (Shimono-shima) )
32°58′N129°0′E / 32.967°N 129.000°E / 32.967; 129.000 (Japan) Flag of Japan.svg  Japan Nagasaki Prefecture — islands of Nakadorijima, Wakamatsujima and Kabajima, Gotō Islands
32°44′N129°0′E / 32.733°N 129.000°E / 32.733; 129.000 (East China Sea) East China Sea
28°50′N129°0′E / 28.833°N 129.000°E / 28.833; 129.000 (Japan) Flag of Japan.svg  Japan Kagoshima Prefecture — islands of Kaminonejima and Yokoatejima, Tokara Islands
28°47′N129°0′E / 28.783°N 129.000°E / 28.783; 129.000 (East China Sea) East China Sea
27°48′N129°0′E / 27.800°N 129.000°E / 27.800; 129.000 (Japan) Flag of Japan.svg  Japan Kagoshima Prefecture — island of Tokunoshima
27°41′N129°0′E / 27.683°N 129.000°E / 27.683; 129.000 (Pacific Ocean) Pacific Ocean Passing just east of the island of Halmahera, Flag of Indonesia.svg  Indonesia (at 0°13′N128°54′E / 0.217°N 128.900°E / 0.217; 128.900 (Halmahera) )
1°55′N129°0′E / 1.917°N 129.000°E / 1.917; 129.000 (Halmahera Sea) Halmahera Sea
1°20′S129°0′E / 1.333°S 129.000°E / -1.333; 129.000 (Ceram Sea) Ceram Sea
2°49′S129°0′E / 2.817°S 129.000°E / -2.817; 129.000 (Indonesia) Flag of Indonesia.svg  Indonesia Island of Seram
3°21′S129°0′E / 3.350°S 129.000°E / -3.350; 129.000 (Banda Sea) Banda Sea
8°12′S129°0′E / 8.200°S 129.000°E / -8.200; 129.000 (Indonesia) Flag of Indonesia.svg  Indonesia Island of Sermata
8°16′S129°0′E / 8.267°S 129.000°E / -8.267; 129.000 (Timor Sea) Timor Sea
14°52′S129°0′E / 14.867°S 129.000°E / -14.867; 129.000 (Australia) Flag of Australia.svg  Australia Western Australia / Northern Territory border
Western Australia / South Australia border — from 26°0′S129°0′E / 26.000°S 129.000°E / -26.000; 129.000 (Western Australia / South Australia border)
31°41′S129°0′E / 31.683°S 129.000°E / -31.683; 129.000 (Indian Ocean) Indian Ocean Australian authorities consider this to be part of the Southern Ocean [2] [3]
60°0′S129°0′E / 60.000°S 129.000°E / -60.000; 129.000 (Southern Ocean) Southern Ocean
66°59′S129°0′E / 66.983°S 129.000°E / -66.983; 129.000 (Antarctica) Antarctica Australian Antarctic Territory, claimed by Flag of Australia.svg  Australia

See also

Related Research Articles

Surveyor Generals Corner point in Australia where the boundaries of South Australia, Western Australia and the Northern Territory meet

Surveyor Generals Corner is a remote point where the Australian state boundaries of South Australia, Western Australia and the Northern Territory meet.

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120th meridian east meridian

The meridian 120° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, Australia, the Southern Ocean, and Antarctica to the South Pole.

130th meridian east meridian

The meridian 130° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

140th meridian east

The meridian 140° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, Australasia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

138th meridian east

The meridian 138° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, Australasia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

135th meridian east meridian

The meridian 135° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, Australasia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

125th meridian east meridian

The meridian 125° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

145th meridian east

The meridian 145° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, Australasia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

124th meridian east meridian

The meridian 124° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Indian Ocean, Australia, the Southern Ocean, and Antarctica to the South Pole.

126th meridian east meridian

The meridian 126° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

127th meridian east meridian

The meridian 127° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

128th meridian east meridian

The meridian 128° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

131st meridian east meridian

The meridian 131° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

133rd meridian east meridian

The meridian 133° east of Greenwich is a line of longitude extending from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

134th meridian east

The meridian 134° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, Australia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

142nd meridian east

The 142nd meridian east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, Australasia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.

Harold Curlewis astronomer

Harold Burnham Curlewis was an Australian astronomer. He was Acting Government Astronomer and Meteorologist in Western Australia from 1912 until his appointment as Government Astronomer in 1920. He held that position until 1940 and is credited with keeping the Perth Observatory open in face of government opposition. The asteroid 3898 Curlewis is named in his honour.

References

  1. Porter, John (April 1990). AN HISTORICAL PERSPECTIVE - Longitude 129 degrees east, and why it is not the longest, straight line in the world. National Perspectives: 32nd Australian Surveyors Congress Technical Papers 31 March - 6 April 1990. Canberra: The Institution: Eyepiece - Official Organ of The Institution of Surveyors, Australia, W.A. Division. pp. 18–24. Porter.
  2. Darby, Andrew (22 December 2003). "Canberra all at sea over position of Southern Ocean". The Age. Retrieved 13 January 2013.
  3. "Indian Ocean". Encyclopædia Britannica. Retrieved 13 January 2013.