| Cosmolabe Rock | |
| Map: | South Shetland Islands#Antarctica |
| Map Relief: | yes |
| Location: | Antarctica |
| Coordinates: | -62.2476°N -59.156°W |
| Archipelago: | South Shetland Islands |
| Area Ha: | 0.23 |
| Length M: | 120 |
| Width M: | 50 |
| Population: | uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty |
Cosmolabe Rock (Bulgarian: скала Космолабия|skala Cosmolabe, in Bulgarian pronounced as /skɐˈla kosmoˈlabija/) is the rock off the NW coast of northwest coast of Nelson Island in the South Shetland Islands, Antarctica extending 120 m in southeast–northwest direction and 50 m wide. Its surface area is 0.23 ha. The vicinity was visited by early 19th century sealers.[1]
The feature is named after the cosmolabe, an instrument created by the French inventor and mathematician Jacques Besson (ca 1540–1573) to be used for navigation, surveying and cartography; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.
Cosmolabe Rock is located at -62.2476°N -59.156°W,[2] which is 860 m northwest of Retamales Point, 2.7 km northeast of Smilets Point and 1.43 km southwest of Withem Island. British mapping in 1968.