Accession Number : ADA586541


Title :   Double Stars in the USNO CCD Astrograpic Catalog


Descriptive Note : Journal article


Corporate Author : NAVAL OBSERVATORY WASHINGTON DC


Personal Author(s) : Hartkopf, William I ; Mason, Brian D ; Finch, Charlie T ; Zacharias, Norbert ; Wycoff, Gary L ; Hsu, Danley


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a586541.pdf


Report Date : Oct 2013


Pagination or Media Count : 9


Abstract : The newly completed Fourth USNO CCD Astrographic Catalog (UCAC4) has proven to be a rich source of double star astrometry and photometry. Following initial comparisons of UCAC4 results against those obtained by speckle interferometry, the UCAC4 catalog was matched against known double stars in theWashington Double Star Catalog in order to provide additional differential astrometry and photometry for these pairs. Matches to 58,131 pairs yielded 61,895 astrometric and 68,935 photometric measurements. Finally, a search for possible new common proper motion (CPM) pairs was made using new UCAC4 proper motion data; this resulted in 4755 new potential CPM doubles (and an additional 27,718 astrometric and photometric measures from UCAC and other sources).


Descriptors :   *BINARY STARS , CATALOGS , PHOTOMETRY , SPECKLE INTERFEROMETRY


Subject Categories : Astronomy


Distribution Statement : APPROVED FOR PUBLIC RELEASE