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