Sisson Rock ( bg, скала Сисън, skala Sisson, ) is the rock off the north coast of

Livingston Island Livingston Island (Russian name ''Smolensk'', ) is an Antarctic island in the Southern Ocean, part of the South Shetlands Archipelago, a group of Antarctic islands north of the Antarctic Peninsula. It was the first land discovered south of 60 ...

in the

South Shetland Islands The South Shetland Islands are a group of Antarctic islands with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty of 195 ...

Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine ...

long in west-east direction and wide, and split in three. Its surface area is . The vicinity was visited by early 19th century

sealers Sealer may refer either to a person or ship engaged in seal hunting, or to a sealant; associated terms include: Seal hunting * Sealer Hill, South Shetland Islands, Antarctica * Sealers' Oven, bread oven of mud and stone built by sealers around 180 ...

.L. Ivanov
General Geography and History of Livingston Island.
In: ''Bulgarian Antarctic Research: A Synthesis''. Eds. C. Pimpirev and N. Chipev. Sofia: St. Kliment Ohridski University Press, 2015. pp. 17–28 The feature is named after

Jonathan Sisson Jonathan Sisson (1690 – 1747) was a prominent English instrument maker, the inventor of the modern theodolite with a sighting telescope for surveying, and a leading maker of astronomical instruments. Career Jonathan Sisson was born in Lincoln ...

(1690–1747), a British instrument maker who invented the modern

theodolite A theodolite () is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes. The traditional use has been for land surveying, but it is also used extensively for building and i ...

; in association with other names in the area deriving from the early development or use of

geodetic Geodesy ( ) is the Earth science of accurately measuring and understanding Earth's figure (geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equivale ...

instruments and methods.

Location

Sisson Rock is located at ,Bulgarian Antarctic Gazetteer.
Antarctic Place-names Commission which is 2.26 km northeast of

Essex Point Essex Point is a point at the northwest end of Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. It forms the west side of the entrance to Barclay Bay and the northeast side of the entrance to Svishtov Cove, and is su ...

, 800 m west of

Window Island Window Island is a small ice-free island off the north coast of Ray Promontory in the northwest of Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The island has a surface area of L.L. IvanovAntarctica: Livingsto ...

and 1.5 km north of Voyteh Point. Bulgarian mapping in 2009 and 2017.

Maps

* Livingston Island to King George Island. Scale 1:200000. Admiralty Nautical Chart 1776. Taunton: UK Hydrographic Office, 1968
South Shetland Islands.
Scale 1:200000 topographic map No. 3373. DOS 610 - W 62 58. Tolworth, UK, 1968 * L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2010. (First edition 2009. ) * L. Ivanov. Antarctica: Livingston Island and Smith Island. Scale 1:100000 topographic map. Manfred Wörner Foundation, 2017.
Antarctic Digital Database (ADD).
Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated

Notes

References

Bulgarian Antarctic Gazetteer.

Antarctic Place-names Commission The Antarctic Place-names Commission was established by the Bulgarian Antarctic Institute in 1994, and since 2001 has been a body affiliated with the Ministry of Foreign Affairs of Bulgaria. The Commission approves Bulgarian place names in ...

. (details in Bulgarian
basic data
in English)

External links

Sisson Rock.
Adjusted Copernix satellite image Rock formations of Livingston Island Bulgaria and the Antarctic {{LivingstonIsland-geo-stub

Location

See also

Maps

Notes

References

External links