@prefix mdl: <http://data.loterre.fr/ark:/67375/MDL> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

mdl:-HQJ1DH2K-P
  skos:prefLabel "région de transition solaire"@fr, "solar transition region"@en ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-VCFJH6J6-2
  skos:related mdl:-HQJ1DH2K-P, mdl:-P8DDVQRP-Q, mdl:-HD0NWS2L-J, mdl:-HJVCNHMJ-N, mdl:-QR403CFQ-8, mdl:-P8BTVJK0-2, mdl:-F24Q7W1F-5, mdl:-X2XMG4JB-X, mdl:-PFF8VN6J-X ;
  skos:definition "The chromosphere is a narrow, irregular region of a star's atmosphere that lies between its photosphere and its corona. The chromosphere of the Sun is the source of many solar phenomena including flares and prominences. The Sun's chromosphere starts from a temperature of about 6,000 K at the top of the photosphere. At about 500 km above the photosphere, there is a temperature minimum of about 4,300 K and, above this, for about another 2,000 km, an increase in temperature to about 20,000 K. From this point up, to the base of the corona, about 10,000 km above the photosphere, is the transition region in which the temperature climbs swiftly to over one million K. The composition and density of the chromosphere also changes markedly. While the lower 1,500 km or so is more or less continuous, the upper chromosphere features jagged spicules. At the same time, the density drops by a factor of about a million from bottom to top. The chromosphere ('color sphere') is so-named because when visible immediately before and after a total eclipse, its light is dominated by the red glow of H-alpha. At other times it can be observed using H-alpha and calcium K-line filtergrams and, from space, in ultraviolet emission lines.  (Encyclopedia of Science, by David Darling, <a href=\"https://www.daviddarling.info/encyclopedia/C/chromosphere.html\" target=\"_blank\">https://www.daviddarling.info/encyclopedia/C/chromosphere.html</a>)"@en, "La chromosphère est une région étroite et irrégulière de l'atmosphère d'une étoile qui se situe entre sa photosphère et sa couronne. La chromosphère du Soleil est la source de nombreux phénomènes solaires, y compris les éruptions et les protubérances. La chromosphère du Soleil commence à une température d'environ 6 000 K au sommet de la photosphère. À environ 500 km au-dessus de la photosphère, il y a un minimum de température d'environ 4 300 K et, au-dessus de cela, pour environ 2000 km, une augmentation de la température à environ 20 000 K. A partir de là, jusqu'à la base de la couronne, environ 10 000 km au-dessus de la photosphère, se situe la région de transition dans laquelle la température grimpe rapidement à plus d'un million de K. La composition et la densité de la chromosphère changent également considérablement.  (traduit depuis \"Encyclopedia of Science, by David Darling\", <a href=\"https://www.daviddarling.info/encyclopedia/C/chromosphere.html\" target=\"_blank\">https://www.daviddarling.info/encyclopedia/C/chromosphere.html</a>)"@fr ;
  skos:exactMatch <https://www.daviddarling.info/encyclopedia/C/chromosphere.html> ;
  skos:prefLabel "chromosphère stellaire"@fr, "stellar chromosphere"@en ;
  a skos:Concept ;
  dc:modified "2022-09-30"^^xsd:date ;
  skos:inScheme mdl: ;
  skos:hiddenLabel "chromosphères stellaires"@fr, "stellar chromospheres"@en ;
  skos:broader mdl:-CM2GWW44-L .

mdl:-CM2GWW44-L
  skos:prefLabel "atmosphère stellaire"@fr, "stellar atmosphere"@en ;
  a skos:Concept ;
  skos:narrower mdl:-VCFJH6J6-2 .

mdl:-X2XMG4JB-X
  skos:prefLabel "solar corona"@en, "couronne solaire"@fr ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-QR403CFQ-8
  skos:prefLabel "atmosphère solaire"@fr, "solar atmosphere"@en ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-F24Q7W1F-5
  skos:prefLabel "vent stellaire"@fr, "stellar wind"@en ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-HJVCNHMJ-N
  skos:prefLabel "solar prominence"@en, "protubérance solaire"@fr ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-P8BTVJK0-2
  skos:prefLabel "fibrille"@fr, "fibril"@en ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-HD0NWS2L-J
  skos:prefLabel "vent solaire"@fr, "solar wind"@en ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl:-PFF8VN6J-X
  skos:prefLabel "solar photosphere"@en, "photosphère solaire"@fr ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .

mdl: a skos:ConceptScheme .
mdl:-P8DDVQRP-Q
  skos:prefLabel "boucle coronale"@fr, "coronal loop"@en ;
  a skos:Concept ;
  skos:related mdl:-VCFJH6J6-2 .