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A vigia is a warning on a nautical chart indicating a possible rock, shoal, or other hazard which has been reported but not yet verified or surveyed. Some non-existent vigias have remained on successive charts for centuries as a precaution by hesitant hydrographers. One such example was 'Las Casses Bank', a vigia between Menorca and Sardinia in the Mediterranean Sea which first appeared on charts in 1373 and remained on some charts as late as 1852. The term vigia is derived from the Spanish vigía or Portuguese vigia, from the Latin vigilia.

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  • Als Vigia bezeichnet man ein zur Warnung in der Seekarte angebrachtes Zeichen auf einer (teilweise auch ungefähren) Position für eine nicht genau bekannte, beziehungsweise kartographisch bisher nicht erfasste Untiefe. Das kann beispielsweise ein Unterwasserfelsen, ein nicht verzeichnetes Wrack oder ein anderes nautisches Hindernis sein. Der Begriff leitet sich vom spanischen Wort vigía, vom portugiesischen Wort vigia, beziehungsweise vom lateinischen Wort vigilare für „wachsam sein“ ab. (de)
  • A vigia is a warning on a nautical chart indicating a possible rock, shoal, or other hazard which has been reported but not yet verified or surveyed. Some non-existent vigias have remained on successive charts for centuries as a precaution by hesitant hydrographers. One such example was 'Las Casses Bank', a vigia between Menorca and Sardinia in the Mediterranean Sea which first appeared on charts in 1373 and remained on some charts as late as 1852. Another notable false vigia was 'Aitkins' Rock' off the northwest coast of Ireland, first reported in 1740 with six further reports over the following eighty years the supposed rock was blamed for numerous lost ships. Surveys by the Royal Navy in 1824, 1827, and 1829 failed to locate the rock, until a final extensive six week survey in 1840 using two brigs led to the conclusion that the rock had never existed. Captain Alexander Thomas Emeric Vidal, who led the final survey, noted that such false sightings were likely due to floating debris or whales. The term vigia is derived from the Spanish vigía or Portuguese vigia, from the Latin vigilia. (en)
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  • Als Vigia bezeichnet man ein zur Warnung in der Seekarte angebrachtes Zeichen auf einer (teilweise auch ungefähren) Position für eine nicht genau bekannte, beziehungsweise kartographisch bisher nicht erfasste Untiefe. Das kann beispielsweise ein Unterwasserfelsen, ein nicht verzeichnetes Wrack oder ein anderes nautisches Hindernis sein. Der Begriff leitet sich vom spanischen Wort vigía, vom portugiesischen Wort vigia, beziehungsweise vom lateinischen Wort vigilare für „wachsam sein“ ab. (de)
  • A vigia is a warning on a nautical chart indicating a possible rock, shoal, or other hazard which has been reported but not yet verified or surveyed. Some non-existent vigias have remained on successive charts for centuries as a precaution by hesitant hydrographers. One such example was 'Las Casses Bank', a vigia between Menorca and Sardinia in the Mediterranean Sea which first appeared on charts in 1373 and remained on some charts as late as 1852. The term vigia is derived from the Spanish vigía or Portuguese vigia, from the Latin vigilia. (en)
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  • Vigia (Piktogramm) (de)
  • Vigia (nautical) (en)
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