90th meridian east
The meridian 90° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.
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90°
90th meridian east
It is the border between two tropical cyclone basins: the Australian region, and the Southwest Indian Ocean basin.
The Ninety East Ridge is named after the meridian.
The 90th meridian east forms a great circle with the 90th meridian west.
This meridian is halfway between the Prime meridian and the 180th meridian and the center of the Eastern Hemisphere is on this meridian.
From Pole to Pole
Starting at the North Pole and heading south to the South Pole, the 90th meridian east passes through:
Co-ordinates Country, territory or sea Notes 90°0′N 90°0′E Arctic Ocean 81°9′N 90°0′E Kara Sea Passing just west of Schmidt Island, Krasnoyarsk Krai, 
77°7′N 90°0′E Krasnoyarsk Krai — Kirov Islands 77°6′N 90°0′E Kara Sea 75°33′N 90°0′E Krasnoyarsk Krai
Republic of Khakassia — from 55°8′N 90°0′E
Tuva Republic — from 51°40′N 90°0′E50°1′N 90°0′E 
Bayan-Ölgii Province 47°53′N 90°0′E 
Xinjiang
Qinghai — from 36°10′N 90°0′E
Tibet — from 33°42′N 90°0′E28°19′N 90°0′E 
26°44′N 90°0′E 
Assam - passing just east of Dhubri
Meghalaya — from 25°50′N 90°0′E25°16′N 90°0′E 
21°59′N 90°0′E Indian Ocean 60°0′S 90°0′E Southern Ocean 66°46′S 90°0′E Antarctica Kaiser Wilhelm II Land, Australian Antarctic Territory, claimed by .svg.png.webp)
See also
| Preceded by 89th meridian east |
90th meridian east forms a great circle with 90th meridian west |
Succeeded by 91st meridian east |
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