129th meridian east

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.

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

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

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


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! scope="col" width="130" | Co-ordinates ! scope="col" | Country, territory or sea ! scope="col" | Notes ! scope="row" style="background:#b0e0e6;" | Arctic Ocean ! scope="row" style="background:#b0e0e6;" | Laptev Sea ! scope="row" | 🇷🇺 ! scope="row" | ! scope="row" | 🇰🇵 ! scope="row" style="background:#b0e0e6;" | Sea of Japan ! scope="row" | 🇰🇷 ! scope="row" style="background:#b0e0e6;" | East China Sea ! scope="row" | 🇯🇵 ! scope="row" style="background:#b0e0e6;" | East China Sea ! scope="row" | 🇯🇵 ! scope="row" style="background:#b0e0e6;" | East China Sea ! scope="row" | 🇯🇵 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" style="background:#b0e0e6;" | Halmahera Sea ! scope="row" style="background:#b0e0e6;" | Ceram Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Banda Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Timor Sea ! scope="row" | 🇦🇺 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica
 * style="background:#b0e0e6;" | 90°N, 129°W
 * style="background:#b0e0e6;" | 90°N, 129°W
 * style="background:#b0e0e6;" |
 * style="background:#b0e0e6;" | 77.35°N, 129°W
 * style="background:#b0e0e6;" | 77.35°N, 129°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * 73.1°N, 129°W
 * Sakha Republic — islands of the Lena Delta and the mainland Amur Oblast — from 55.5°N, 129°W
 * -valign="top"
 * 49.45°N, 129°W
 * Heilongjiang Jilin — from 43.51667°N, 129°W
 * 42.1°N, 129°W
 * 42.1°N, 129°W
 * style="background:#b0e0e6;" | 40.46667°N, 129°W
 * style="background:#b0e0e6;" | 40.46667°N, 129°W
 * style="background:#b0e0e6;" | 40.46667°N, 129°W
 * style="background:#b0e0e6;" |
 * 37.71667°N, 129°W
 * 37.71667°N, 129°W
 * Passing just west of Busan
 * -valign="top"
 * style="background:#b0e0e6;" | 35.06667°N, 129°W
 * style="background:#b0e0e6;" | Korea Strait — passing just west of the island of Tsushima Island, Nagasaki Prefecture, 🇯🇵 (at 34.13333°N, 129.16667°W)
 * -valign="top"
 * 32.96667°N, 129°W
 * Nagasaki Prefecture — islands of Nakadorijima, Wakamatsujima and Kabajima, Gotō Islands
 * style="background:#b0e0e6;" | 32.73333°N, 129°W
 * style="background:#b0e0e6;" | 32.73333°N, 129°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * 28.83333°N, 129°W
 * Kagoshima Prefecture — islands of Kaminonejima and Yokoatejima, Tokara Islands
 * style="background:#b0e0e6;" | 28.78333°N, 129°W
 * style="background:#b0e0e6;" | 28.78333°N, 129°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * 27.8°N, 129°W
 * Kagoshima Prefecture — island of Tokunoshima
 * -valign="top"
 * style="background:#b0e0e6;" | 27.68333°N, 129°W
 * style="background:#b0e0e6;" | Passing just east of the island of Halmahera, 🇮🇩 (at 0.21667°N, 128.9°W)
 * style="background:#b0e0e6;" | 1.91667°N, 129°W
 * style="background:#b0e0e6;" | 1.91667°N, 129°W
 * style="background:#b0e0e6;" |
 * style="background:#b0e0e6;" | -1.33333°N, 129°W
 * style="background:#b0e0e6;" | -1.33333°N, 129°W
 * style="background:#b0e0e6;" |
 * -2.81667°N, 129°W
 * -2.81667°N, 129°W
 * Island of Seram
 * style="background:#b0e0e6;" | -3.35°N, 129°W
 * style="background:#b0e0e6;" | -3.35°N, 129°W
 * style="background:#b0e0e6;" |
 * -8.2°N, 129°W
 * -8.2°N, 129°W
 * Island of Sermata
 * style="background:#b0e0e6;" | -8.26667°N, 129°W
 * style="background:#b0e0e6;" | -8.26667°N, 129°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * -14.86667°N, 129°W
 * Western Australia / Northern Territory border Western Australia / South Australia border — from -26°N, 129°W
 * style="background:#b0e0e6;" | -31.68333°N, 129°W
 * style="background:#b0e0e6;" | -31.68333°N, 129°W
 * style="background:#b0e0e6;" | Australian authorities consider this to be part of the Southern Ocean
 * style="background:#b0e0e6;" | -60°N, 129°W
 * style="background:#b0e0e6;" | -60°N, 129°W
 * style="background:#b0e0e6;" |
 * -66.98333°N, 129°W
 * -66.98333°N, 129°W
 * Australian Antarctic Territory, claimed by 🇦🇺
 * }
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