Astrolabe Island

Template:Short description Template:Use dmy dates Template:Template other Astrolabe Island () is an island long, lying in the Bransfield Strait northwest of Cape Ducorps, Trinity Peninsula in Antarctica.Template:Sfn

Location

Astrolabe Island is in Graham Land. It lies in the Bransfield Strait to the west-northwest of the Tupinier Islands and the Cockerell Peninsula on the north coast of the Trinity Peninsula, which itself is the tip of the Antarctic Peninsula. Features include Sherell Point, Diaz Rock and the Dragons Teeth.Template:SfnTemplate:Sfn

Geology

Astrolabe Island is predominantly volcanic rocks, with coarse grained mafic dolerite making up most of the landing site on the east end. The steep pyramid peaks, called the Dragons Teeth, may be the vents of an old volcanic complex, probably related to the Shetland subduction zone to the north.Template:Fact

Sailing directions

The US Defense Mapping Agency's Sailing Directions for Antarctica (1976) describes Astrolabe Island as follows: Template:Quote

Discovery and name

Astrolabe Island was discovered by the French expedition, 1837–40, under Captain Jules Dumont d'Urville, and named by him for his chief expedition ship, the Astrolabe.Template:Sfn The island was photographed from the air and triangulated by the Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE) in 1956–57.

Coastal features

Template:Copernix Coastal features include, clockwise from the north:

Kanarata Point

. A rocky point in northeastern Astrolabe Island forming the north extremity of the island surmounted by Dragons Teeth. Situated northeast of Raduil Point and north of Drumohar Peak. Named after Kanarata Peak in Rila Mountain, Bulgaria.Template:Sfn

Velcha Cove

. A wide cove indenting the east coast of Astrolabe Island by . Centred southeast of Kanarata Point, southwest of Papazov Island and northeast of Sherrell Point. Surmounted by Drumohar Peak on the northwest and Rogach Peak on the south. Named after Velcha Peak in Eastern Balkan Mountains.Template:Sfn

Gega Point

. A point on the west coast of Astrolabe Island. Situated northwest of Sherrell Point and southeast of Raduil Point. Forming the southeast side of the entrance to Mokren Bight. Named after the settlement of Gega in Southwestern Bulgaria.Template:Sfn

Mokren Bight

. A wide embayment indenting the west coast of Astrolabe Island for . Entered north of Gega Point. Named after the settlement of Mokren in Southeastern Bulgaria.Template:Sfn

Damga Point

. A sharp rocky northwest entrance point of Mokren Bight on the west coast of Astrolabe Island. Situated south of Raduil Point, southwest of Petleshkov Hill and northwest of Sherrell Point. Named after Damga Peak in Rila Mountain, Bulgaria.Template:Sfn

Raduil Point

. The point forming the northwest extremity of Astrolabe Island. Situated northwest of Sherrell Point. Named after the settlement of Raduil in Southwestern Bulgaria.Template:Sfn

Sherrell Point

. A point at the south end of Astrolabe Island. Named for Frederick W. Sherrell, surveyor and geologist in this area with the Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE), 1955-56.Template:Sfn

Inland features

Inland features, from west to east, include:

Petleshkov Hill

. An ice-covered hill rising to high in northwestern Astrolabe Island. Situated northeast of Damga Point, southeast of Raduil Point and west of Drumohar Peak. Surmounts Mokren Bight to the south. Named after Vasil Petleshkov (1845-1876), a leader of the 1876 April Uprising for Bulgarian independence, in connection with the settlement of Petleshkovo in Northeastern Bulgaria.Template:Sfn

Drumohar Peak

. The ice-covered peak rising to high on Astrolabe Island in Graham Land. Situated east-northeast of Raduil Point and north-northwest of Rogach Peak. German-British mapping in 1996. Named after the settlement of Drumohar in Western Bulgaria.Template:Sfn

Rogach Peak

. The ice-covered peak rising to Raduil Point high on Astrolabe Island, summit of the island. Situated northeast of Sherell Point and south-southeast of Drumohar Peak. German-British mapping in 1996. Named after the settlement of Rogach in Southern Bulgaria.Template:Sfn

Nearby islands

Nearby rocks and islands include, clockwise from the north,

Dragons Teeth

. A small group of rocks off the northeast part of Astrolabe Island. The name, applied by the UK Antarctic Place-Names Committee (UK-APC), is descriptive of these black tooth-shaped rocks.Template:Sfn

Polich Island

. A rocky island lying off the northeast coast of Astrolabe Island, long in a southeast–northwest direction and wide. Situated northeast of Kanarata Point, north-northwest of Sagita Island and north-northeast of Drumohar Peak. Named after Golyam Polich and Malak Polich Peaks in Rila Mountain, Bulgaria.Template:Sfn

Sagita Island

. A rocky island lying off the northeast coast of Astrolabe Island, long in a southwest–northeast direction and wide. Situated southeast of Kanarata Point and northeast of Drumohar Peak. Named after the ocean fishing trawler Sagita of the Bulgarian company Ocean Fisheries – Burgas that operated in Antarctic waters off South Georgia during its fishing trips under Captain Ivan Krastanov from February 1978 to July 1978, and under Captain Yordan Yordanov from December 1979 to June 1980. Apart from fishing, on the latter occasion the ship carried out fisheries research by an onboard scientific team.Template:Sfn

Papazov Island

. A rocky island lying off the entrance to Velcha Cove on the east coast of Astrolabe Island, long in a west.southwest – east-northeast direction and wide. Situated southeast of Kanarata Point and east of Drumohar Peak. Named after the Bulgarian-French artist George Papazov (1894-1972).Template:Sfn

Diaz Rock

. The largest of several rocks close north of the west end of Astrolabe Island. The name was given by the first Chilean Antarctic Expedition (1947) for sub-lieutenant Joaquin Diaz Martinez.Template:Sfn

Sources

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