173rd meridian west
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173°
173rd meridian west ()
The meridian 173° west of Greenwich is a line of longitude[1] that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 173rd meridian west forms a great circle with the 7th meridian east.
From Pole to Pole
Starting at the North Pole and heading south to the South Pole, the 173rd meridian west passes through:
Co-ordinates Country, territory or sea Notes 90°0′N 173°0′W / 90.000°N 173.000°W Arctic Ocean 71°48′N 173°0′W / 71.800°N 173.000°W Chukchi Sea 67°3′N 173°0′W / 67.050°N 173.000°W 
Russia
Chukotka Autonomous Okrug — Chukchi Peninsula 64°15′N 173°0′W / 64.250°N 173.000°W Bering Sea 60°34′N 173°0′W / 60.567°N 173.000°W .png)
United States
Alaska — St. Matthew Island 60°29′N 173°0′W / 60.483°N 173.000°W Bering Sea 52°6′N 173°0′W / 52.100°N 173.000°W United States
Alaska — Amlia Island 52°5′N 173°0′W / 52.083°N 173.000°W Pacific Ocean Passing just west of the island of Savai'i, 
Samoa (at 13°31′S 172°48′W / 13.517°S 172.800°W)
60°0′S 173°0′W / 60.000°S 173.000°W Southern Ocean 78°28′S 173°0′W / 78.467°S 173.000°W Antarctica Ross Dependency, claimed by 
New Zealand
See also
References
- ^ "What is longitude?". oceanservice.noaa.gov. Retrieved 1 July 2025.
