172nd meridian west

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172°

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172nd meridian west

The meridian 172° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.

The 172nd meridian west forms a great circle with the 8th meridian east.

Starting at the North Pole and heading south to the South Pole, the 172nd meridian west passes through:

Co-ordinates	Country, territory or sea	Notes
90°0′N 172°0′W / 90.000°N 172.000°W / 90.000; -172.000 (Arctic Ocean)	Arctic Ocean
71°49′N 172°0′W / 71.817°N 172.000°W / 71.817; -172.000 (Chukchi Sea)	Chukchi Sea
66°57′N 172°0′W / 66.950°N 172.000°W / 66.950; -172.000 (Russia)	Russia	Chukotka Autonomous Okrug — Chukchi Peninsula
65°28′N 172°0′W / 65.467°N 172.000°W / 65.467; -172.000 (Bering Sea)	Bering Sea	Passing just east of Arakamchechen Island, Chukotka Autonomous Okrug,  Russia (at 64°45′N 172°3′W / 64.750°N 172.050°W / 64.750; -172.050 (Arakamchechen Island)) Passing just east of Cape Chaplino, Chukotka Autonomous Okrug,  Russia (at 64°24′N 172°13′W / 64.400°N 172.217°W / 64.400; -172.217 (Cape Chaplino)) Passing just west of St. Lawrence Island, Alaska,  United States (at 63°29′N 171°51′W / 63.483°N 171.850°W / 63.483; -171.850 (St. Lawrence Island)) Passing just east of St. Matthew Island, Alaska,  United States (at 60°19′N 172°12′W / 60.317°N 172.200°W / 60.317; -172.200 (St. Matthew Island)) Passing just east of Seguam Island, Alaska,  United States (at 52°20′N 172°17′W / 52.333°N 172.283°W / 52.333; -172.283 (Seguam Island))
52°22′N 172°0′W / 52.367°N 172.000°W / 52.367; -172.000 (Pacific Ocean)	Pacific Ocean	Passing just west of the island of Laysan, Hawaii,  United States (at 25°46′N 171°43′W / 25.767°N 171.717°W / 25.767; -171.717 (Laysan)) Passing just west of Kanton Island,  Kiribati (at 2°46′S 171°43′W / 2.767°S 171.717°W / -2.767; -171.717 (Kanton Island)) Passing just east of Orona atoll,  Kiribati (at 4°30′S 172°8′W / 4.500°S 172.133°W / -4.500; -172.133 (Orona)) Passing just west of Nukunonu atoll,  Tokelau (at 9°7′S 171°52′W / 9.117°S 171.867°W / -9.117; -171.867 (Nukunonu)) Passing just east of the island of Savai'i,  Samoa (at 13°39′S 172°10′W / 13.650°S 172.167°W / -13.650; -172.167 (Savai'i))
13°49′S 172°0′W / 13.817°S 172.000°W / -13.817; -172.000 (Samoa)	Samoa	Island of Upolu
13°55′S 172°0′W / 13.917°S 172.000°W / -13.917; -172.000 (Pacific Ocean)	Pacific Ocean
60°0′S 172°0′W / 60.000°S 172.000°W / -60.000; -172.000 (Southern Ocean)	Southern Ocean
78°28′S 172°0′W / 78.467°S 172.000°W / -78.467; -172.000 (Antarctica)	Antarctica	Ross Dependency, claimed by  New Zealand

• 171st meridian west
• 173rd meridian west