{"@context":{"ns0":"http://data.loterre.fr/ark:/67375/","rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","owl":"http://www.w3.org/2002/07/owl#","skos":"http://www.w3.org/2004/02/skos/core#","metadata_def":"http://data.bioontology.org/metadata/def/","ns1":"https://www.daviddarling.info/encyclopedia/L/"},"@graph":[{"@id":"ns0:MDL-SZ7PQ0H1-N","@type":["owl:NamedIndividual","skos:Concept"],"skos:inScheme":{"@id":"ns0:MDL"},"skos:prefLabel":[{"@language":"fr","@value":"comète à longue période"},{"@language":"en","@value":"long-period comet"}],"skos:definition":[{"@language":"fr","@value":"Une comète à longue période est une comète avec une période de plus de 200 ans et jusqu'à plusieurs millions d'années. On pense que les comètes à longue période, ainsi que les comètes de type Halley, proviennent du nuage d'Oort, un réservoir énorme de noyaux cométaires gelés en orbite autour du soleil à une distance de dizaines de milliers d'unités astronomiques. (traduit depuis \"Encyclopedia of Science, by David Darling\", https://www.daviddarling.info/encyclopedia/L/longperiod.html )"},{"@language":"en","@value":"A long-period comet is a comet with a period of more than 200 years and as much as several million years. Long-period comets, together with Halley-type comets, are now believed to come from the Oort Cloud, an enormous reservoir of frozen cometary nuclei orbiting the Sun at a distance of tens of thousands of astronomical units. The gravitational influences of passing stars, giant molecular clouds, and the central regions of the Galaxy, are thought to be instrumental in occasionally perturbing the orbits of some of the Oort objects and causing them to plunge toward the inner solar system on highly elliptical paths characteristic of long-period comets. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/L/longperiod.html )"}],"skos:hiddenLabel":[{"@language":"fr","@value":"Comète longue période"},{"@language":"fr","@value":"Comète longues périodes"},{"@language":"en","@value":"Long period comet"},{"@language":"fr","@value":"comètes à longues périodes"},{"@language":"en","@value":"long period comet"},{"@language":"en","@value":"long period comets"},{"@language":"en","@value":"long-period comets"}],"metadata_def:mappingLoom":"comtelonguepriode","metadata_def:mappingSameURI":{"@id":"ns0:MDL-SZ7PQ0H1-N"},"skos:exactMatch":{"@id":"ns1:longperiod.html"},"skos:broader":{"@id":"ns0:MDL-VX2L2V9M-1"}},{"@id":"ns0:MDL-VX2L2V9M-1","skos:narrower":{"@id":"ns0:MDL-SZ7PQ0H1-N"}}]}