{ "format" : "linked-data-api", "version" : "0.2", "result" : {"_about" : "https://vocabs.ardc.edu.au/repository/api/lda/aas/the-unified-astronomy-thesaurus/5-0-0/resource.text?uri=http://astrothesaurus.org/uat/558", "definition" : "https://vocabs.ardc.edu.au/repository/api/lda/aas/the-unified-astronomy-thesaurus/5-0-0/resource.text?uri=http://astrothesaurus.org/uat/558", "extendedMetadataVersion" : "https://vocabs.ardc.edu.au/repository/api/lda/aas/the-unified-astronomy-thesaurus/5-0-0/resource.text?_metadata=all&uri=http://astrothesaurus.org/uat/558", "primaryTopic" : {"_about" : "http://astrothesaurus.org/uat/558", "altLabel" : [{"_value" : "Class G stars", "_lang" : "en"} , {"_value" : "G-type stars", "_lang" : "en"} ], "broader" : [{"_about" : "http://astrothesaurus.org/uat/2051", "narrower" : ["http://astrothesaurus.org/uat/558"]} , {"_about" : "http://astrothesaurus.org/uat/818", "narrower" : ["http://astrothesaurus.org/uat/558"]} ], "contributor" : "http://editor.vocabs.ands.org.au/user/AAS_Frey.Katie", "dctermsModified" : "Fri, 30 Oct 2020 19:55:49 GMT+0000", "definition" : "A member of a class of stars to which the Sun belongs. The G-type stars on the main sequence have surface temperatures of 5,300-6,000 K and therefore appear yellow in color. G type giant stars (such as Capella) are almost 100-500 K colder than the corresponding main sequence stars. G type supergiants have temperatures of 4,500-5,500 K. The spectrum of early type G stars, such as the Sun (G2), is dominated by ionized lines of calcium (H and K lines, mainly) and neutral metals. In later type G stars the molecular bands of CH molecules and CN molecules become visible. The main sequence and giant stars have masses of ~ 1 solar mass, while the supergiants are of ~ 10 solar masses. The luminosities of G-type giants are almost 30-60 times greater than that of the Sun, whereas the supergiants are 10,000-30,000 times more luminous.", "narrower" : [{"_about" : "http://astrothesaurus.org/uat/556", "broader" : ["http://astrothesaurus.org/uat/558"]} , {"_about" : "http://astrothesaurus.org/uat/557", "broader" : ["http://astrothesaurus.org/uat/558"]} , {"_about" : "http://astrothesaurus.org/uat/559", "broader" : ["http://astrothesaurus.org/uat/558"]} , {"_about" : "http://astrothesaurus.org/uat/560", "broader" : ["http://astrothesaurus.org/uat/558"]} , {"_about" : "http://astrothesaurus.org/uat/561", "broader" : ["http://astrothesaurus.org/uat/558"]} ], "prefLabel" : {"_value" : "G stars", "_lang" : "en"} , "related" : [{"_about" : "http://astrothesaurus.org/uat/1589", "related" : ["http://astrothesaurus.org/uat/558"]} ], "type" : ["http://www.w3.org/2000/01/rdf-schema#Resource", "http://www.w3.org/2004/02/skos/core#Concept"]} , "type" : ["http://purl.org/linked-data/api/vocab#ItemEndpoint", "http://purl.org/linked-data/api/vocab#Page"]} }