Accurate optical positions of extragalactic radio reference frame sources

Astronomical Journal

Volumn 118, Issue 5, 1999, Pages 2511-2525

  Zacharias, N ^a   Zacharias, M I ^a,c   Hall, D M ^a   Johnston, K J ^a   De Vegt, C ^b   Winter, L ^b  

^a US NAVAL OBSERVATORY   (United States)

^b UNIVERSITY OF HAMBURG   (Germany)

^c University of Space Research Association   (United States)

Author keywords

Astrometry; Catalogs; Quasars: general; Reference systems

Indexed keywords

EID: 0000446421     PISSN: 00046256     EISSN: None     Source Type: Journal    
DOI: 10.1086/301083     Document Type: Article

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