@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix prefix: <http://qudt.org/vocab/prefix/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix qkdv: <http://qudt.org/vocab/dimensionvector/> .
@prefix quantitykind: <http://qudt.org/vocab/quantitykind/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix si-unit: <https://si-digital-framework.org/SI/units/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix sou: <http://qudt.org/vocab/sou/> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix vaem: <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag: <http://voag.linkedmodel.org/schema/voag#> .

unit:YR_TROPICAL
  a qudt:Unit ;
  dcterms:description """<p>A tropical year (also known as a solar year), for general purposes, is the length of time that the Sun
    takes to return to the same position in the cycle of seasons, as seen from Earth; for example, the time from vernal equinox to
    vernal equinox, or from summer solstice to summer solstice. Because of the precession of the equinoxes, the seasonal cycle
    does not remain exactly synchronised with the position of the Earth in its orbit around the Sun. As a consequence, the
    tropical year is about 20 minutes shorter than the time it takes Earth to complete one full orbit around the Sun as measured
    with respect to the fixed stars. Since antiquity, astronomers have progressively refined the definition of the tropical year,
    and currently define it as the time required for the mean Sun's tropical longitude (longitudinal position along the ecliptic
    relative to its position at the vernal equinox) to increase by 360 degrees (that is, to complete one full seasonal
    circuit).</p>
  """^^rdf:HTML ;
  qudt:applicableSystem sou:CGS ;
  qudt:applicableSystem sou:CGS-EMU ;
  qudt:applicableSystem sou:CGS-GAUSS ;
  qudt:applicableSystem sou:IMPERIAL ;
  qudt:applicableSystem sou:SI ;
  qudt:applicableSystem sou:USCS ;
  qudt:conversionMultiplier 31556925.216 ;
  qudt:conversionMultiplierSN 3.1556925216E7 ;
  qudt:hasDimensionVector qkdv:A0E0L0I0M0H0T1D0 ;
  qudt:hasQuantityKind quantitykind:Time ;
  qudt:iec61360Code "0112/2///62720#UAB029" ;
  qudt:informativeReference "https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/Units/0112-2---62720%23UAB029"^^xsd:anyURI ;
  qudt:scalingOf unit:SEC ;
  qudt:symbol "a{tropical}" ;
  qudt:ucumCode "a_t"^^qudt:UCUMcs ;
  qudt:uneceCommonCode "D42" ;
  qudt:unitForQuantityKind quantitykind:Time ;
  qudt:wikidataMatch <http://www.wikidata.org/entity/Q189607> ;
  rdfs:isDefinedBy <http://qudt.org/3.4.0/vocab/unit> ;
  rdfs:label "Tropical Year" ;
  rdfs:label "Tropical Year"@en ;
  skos:altLabel "solar year" .