The Pacific Ocean is the largest ocean in the world and the largest, deepest ocean with the most marginal seas and islands in the world. The Pacific is about 15900 kilometers long from north to South and 19000 kilometers wide from east to west, with a total area of 181344000 square kilometers. It is located between Asia, Oceania, Antarctica and North and South America. The term "Pacific" first appeared in the 1620s and was first named by the great navigator Magellan and his fleet.
Pacific Ocean, north to Bering Strait, 65 & deg n; 44′， South to Antarctica, 85 & deg s; 33′， Cross latitude 151 & deg;, East to west longitude 78 & deg; 08′， West to east longitude 99 & deg; 10′， It spans 177 longitudes.
There are about 10000 islands in the Pacific Ocean, with a total area of more than 4.4 million square kilometers, accounting for about 45% of the total area of the world's islands. （TaiPingXiangShiShiJieShangZuiDaDeHaiXiangMa）