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.

The 138th meridian east forms a great circle with the 42nd meridian west.

In Australia, the border between the Northern Territory and Queensland approximates the meridian. The border runs north from Poeppel Corner at a bearing of 359° 59' 30", reaching the Gulf of Carpentaria several hundred meters west of the meridian.

From Pole to Pole
Starting at the North Pole and heading south to the South Pole, the 138th 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" | 🇷🇺 ! scope="row" style="background:#b0e0e6;" | Laptev Sea ! scope="row" | 🇷🇺 ! scope="row" style="background:#b0e0e6;" | Sea of Okhotsk ! scope="row" | 🇷🇺 ! scope="row" style="background:#b0e0e6;" | Sea of Okhotsk ! scope="row" | 🇷🇺 ! scope="row" style="background:#b0e0e6;" | Sea of Japan ! scope="row" | 🇯🇵 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Arafura Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Arafura Sea ! scope="row" style="background:#b0e0e6;" | Gulf of Carpentaria ! scope="row" | 🇦🇺 ! scope="row" style="background:#b0e0e6;" | Gulf St Vincent ! scope="row" | 🇦🇺 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica
 * style="background:#b0e0e6;" | 90°N, 138°W
 * style="background:#b0e0e6;" | 90°N, 138°W
 * style="background:#b0e0e6;" |
 * 76°N, 138°W
 * 76°N, 138°W
 * Sakha Republic — Kotelny Island, New Siberian Islands
 * style="background:#b0e0e6;" | 74.85°N, 138°W
 * style="background:#b0e0e6;" | 74.85°N, 138°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * 71.55°N, 138°W
 * Sakha Republic — Yarok Island and the mainland Khabarovsk Krai — from 59.81667°N, 138°W
 * style="background:#b0e0e6;" | 56.38333°N, 138°W
 * style="background:#b0e0e6;" | 56.38333°N, 138°W
 * style="background:#b0e0e6;" |
 * 55.08333°N, 138°W
 * 55.08333°N, 138°W
 * Khabarovsk Krai — Bolshoy Shantar Island
 * style="background:#b0e0e6;" | 54.76667°N, 138°W
 * style="background:#b0e0e6;" | 54.76667°N, 138°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * 53.61667°N, 138°W
 * Khabarovsk Krai Primorsky Krai — from 48.3°N, 138°W Khabarovsk Krai — from 47.68333°N, 138°W Primorsky Krai — from 47.63333°N, 138°W Khabarovsk Krai — from 47.6°N, 138°W Primorsky Krai — from 47.46667°N, 138°W
 * -valign="top"
 * style="background:#b0e0e6;" | 46.13333°N, 138°W
 * style="background:#b0e0e6;" | Passing just west of Sado island, Niigata Prefecture, 🇯🇵 (at 37.81667°N, 138.2°W)
 * -valign="top"
 * 37.11667°N, 138°W
 * Island of Honshū — Niigata Prefecture — Nagano Prefecture — from 36.9°N, 138°W (passing just east of Matsumoto city) — Shizuoka Prefecture — from 35.28333°N, 138°W (passing through Kakegawa city)
 * -valign="top"
 * style="background:#b0e0e6;" | 34.66667°N, 138°W
 * style="background:#b0e0e6;" | Passing just west of Yap island, 🇫🇲 (at 9.45°N, 138.05°W)
 * -1.55°N, 138°W
 * -1.55°N, 138°W
 * Island of New Guinea
 * style="background:#b0e0e6;" | -5.48333°N, 138°W
 * style="background:#b0e0e6;" | -5.48333°N, 138°W
 * style="background:#b0e0e6;" |
 * -7.71667°N, 138°W
 * -7.71667°N, 138°W
 * Island of Yos Sudarso
 * style="background:#b0e0e6;" | -8.4°N, 138°W
 * style="background:#b0e0e6;" | -8.4°N, 138°W
 * style="background:#b0e0e6;" |
 * style="background:#b0e0e6;" | -12.01667°N, 138°W
 * style="background:#b0e0e6;" | -12.01667°N, 138°W
 * style="background:#b0e0e6;" |
 * -valign="top"
 * -16.55°N, 138°W
 * Northern Territory / Queensland border (approximately) South Australia — from -26°N, 138°W
 * style="background:#b0e0e6;" | -34.35°N, 138°W
 * style="background:#b0e0e6;" | -34.35°N, 138°W
 * style="background:#b0e0e6;" |
 * -35.73333°N, 138°W
 * -35.73333°N, 138°W
 * South Australia — Kangaroo Island
 * style="background:#b0e0e6;" | -35.9°N, 138°W
 * style="background:#b0e0e6;" | -35.9°N, 138°W
 * style="background:#b0e0e6;" | Australian authorities consider this to be part of the Southern Ocean
 * style="background:#b0e0e6;" | -60°N, 138°W
 * style="background:#b0e0e6;" | -60°N, 138°W
 * style="background:#b0e0e6;" |
 * -66.48333°N, 138°W
 * -66.48333°N, 138°W
 * Adélie Land, claimed by 🇫🇷
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