@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#> .

<http://astrothesaurus.org/uat/747>
  skos:altLabel "Alt/Az coordinate system"@en, "Horizon (horizon coordinate system)"@en, "az/el coordinate system"@en, "Horizon coordinate system"@en ;
  skos:narrower <http://astrothesaurus.org/uat/124>, <http://astrothesaurus.org/uat/1026>, <http://astrothesaurus.org/uat/2340>, <http://astrothesaurus.org/uat/1086>, <http://astrothesaurus.org/uat/1838>, <http://astrothesaurus.org/uat/1765>, <http://astrothesaurus.org/uat/30>, <http://astrothesaurus.org/uat/2339>, <http://astrothesaurus.org/uat/2341> ;
  a skos:Concept ;
  skos:editorialNote [ ] ;
  dc:modified "2020-11-02T16:48:41.417Z"^^xsd:dateTime, "2020-11-02T16:48:54.89Z"^^xsd:dateTime ;
  skos:broader <http://astrothesaurus.org/uat/82> ;
  dc:contributor <http://editor.vocabs.ands.org.au/user/AAS_Frey.Katie_Admin> ;
  skos:prefLabel "Horizontal coordinate system"@en ;
  skos:definition "The coordinate system based on the position of the observer. The horizontal plane is the fundamental plane and the coordinates are altitude and azimuth."@en .

<http://astrothesaurus.org/uat/2341>
  skos:prefLabel "Zenith distance"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/124>
  skos:prefLabel "Azimuth"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/30>
  skos:prefLabel "Altitude angle"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/1086>
  skos:prefLabel "Nadir"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/2340>
  skos:prefLabel "Cardinal directions"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/1026>
  skos:prefLabel "Meridian"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/1765>
  skos:prefLabel "Vertical circle"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/2339>
  skos:prefLabel "Horizon"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/82>
  skos:prefLabel "Astronomical coordinate systems"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/747> .

<http://astrothesaurus.org/uat/1838>
  skos:prefLabel "Zenith"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/747> .