@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix mcr: <https://registry.apicrafter.io/vocab#> .
@prefix dt: <https://registry.apicrafter.io/datatype/> .
@prefix cat: <https://registry.apicrafter.io/category/> .
@prefix country: <https://registry.apicrafter.io/country/> .
@prefix tool: <https://registry.apicrafter.io/tool/> .

dt:ngc_number a skos:Concept ;
    skos:inScheme <https://registry.apicrafter.io/> ;
    skos:topConceptOf <https://registry.apicrafter.io/> ;
    skos:notation "ngc_number" ;
    skos:prefLabel "NGC object designation (New General Catalogue)"@en ;
    skos:definition "Designation of a galaxy, star cluster or nebula in the New General Catalogue of 1888, the letters NGC and a number from 1 to 7840. Some entries have a letter after the number, as in NGC 1427A."@en ;
    skos:prefLabel "Обозначение объекта по Новому общему каталогу (NGC)"@ru ;
    skos:example "NGC 224" ;
    skos:example "NGC 598" ;
    skos:example "NGC 1427A" ;
    mcr:status "draft" ;
    mcr:isPII false ;
    mcr:classification "identifier" ;
    mcr:regexp "^NGC ?\\d{1,4}[A-Z]?$" ;
    rdfs:seeAlso <https://en.wikipedia.org/wiki/New_General_Catalogue> .