Fredriksen Island is an island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 2.5 nautical miles (4.6 km) long and 0.5 nautical miles (0.9 km) wide, lying 0.5 nautical miles (0.9 km) southeast of Powell Island

Powell Island

Powell Island is a narrow island long and wide, lying between Coronation and Laurie Islands in the central part of the South Orkney Islands. Discovered on the occasion of the joint cruise by Capt. George Powell and Capt. Nathaniel Palmer in December 1821. It was correctly charted, though unnamed,...

 in the South Orkney Islands

South Orkney Islands

The South Orkney Islands are a group of islands in the Southern Ocean, about north-east of the tip of the Antarctic Peninsula. They have a total area of about ....

. Discovered by Captain Nathaniel Palmer

Nathaniel Palmer

Nathaniel Brown Palmer was an American seal hunter, explorer, sailing captain, and ship designer. He was born in Stonington, Connecticut.-Sealing career and Antarctic exploration:...

 and Captain George Powell on the occasion of their joint cruise in December 1821. Named by Norwegian whaling captain Petter Sorlle, who made a running survey

Running survey

A running survey is a rough survey made by a vessel while coasting. Bearings to landmarks are taken at intervals as the vessel sails offshore, and are used to fix features on the coast and further inland...

of the island in the 1912-13 season.