Ice (white) in the Southern Ocean around Antarctica (light purple at bottom) grows and shrinks during the year
The Southern Ocean , also called the Antarctic Ocean , is the ocean around the continent of Antarctica . The fourth-largest sea by area, at 20,327,000 km², it has a coastline 17,968 km long and is surrounded by the waters of the Atlantic , Pacific , and Indian Oceans .
Since the 1770s, geographers have discussed its limits, but the latitude sixty degrees south is now often accepted. It includes several seas like Cosmonauts, Somov, Commonwealth, and Mowson.
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