{"title":"Revision of the FK4 catalogue from type-1 photoelectric astrolabe observations in the period 1973 October – 1976 October","authors":"Yang Ting-Gao","doi":"10.1016/0146-6364(80)90044-4","DOIUrl":null,"url":null,"abstract":"<div><p>We give the revisions to the FK4 Catalogue based on the observations made with a Type-1 photoelectric astrilabe in the period 1973 October to 1976 October, together with a description of the procedures and the accuracies obtained, and a study of the systematic errors of Δα<sub>δ</sub> and Δδ<sub>δ</sub> types in the catalogue. The results obtained show that the Type-1 photoelectric astrolabe is better than the Danjon astrolabe for the purpose of improving star positions.</p></div>","PeriodicalId":100241,"journal":{"name":"Chinese Astronomy","volume":"4 2","pages":"Pages 136-142"},"PeriodicalIF":0.0000,"publicationDate":"1980-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6364(80)90044-4","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0146636480900444","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
We give the revisions to the FK4 Catalogue based on the observations made with a Type-1 photoelectric astrilabe in the period 1973 October to 1976 October, together with a description of the procedures and the accuracies obtained, and a study of the systematic errors of Δαδ and Δδδ types in the catalogue. The results obtained show that the Type-1 photoelectric astrolabe is better than the Danjon astrolabe for the purpose of improving star positions.
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