• The USNO CCD Astrograph Catalog (UCAC) is an astrometric star catalog of the United States Naval Observatory. The first preliminary edition, published...
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  • 15 L☉). This stellar object was first characterized by the 2nd USNO CCD Astrograph Catalog and the Two Micron All-Sky Survey, and was further studied during...
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  • and supports the United States Naval Observatory's USNO CCD Astrograph Catalog (UCAC) catalogs, and European Space Agency Gaia data. Free and open-source...
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  • Photoelectric Photometry Catalogue (Mermilliod 1987) UCAC — USNO CCD Astrograph Catalog (UCAC1, UCAC2, UCAC3, UCAC4 & UCAC5) UGC — Uppsala General Catalogue...
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    Tabby's Star (category Kepler Input Catalog)
    California Institute of Technology. Retrieved 17 June 2016. "USNO CCD Astrograph Catalog (UCAC)". United States Naval Observatory. Archived from the original...
    92 KB (8,405 words) - 22:41, 20 May 2024
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    8063389°W / -30.1685972; -70.8063389 A 0.2 m (7.9 in) astrograph was used by the USNO CCD Astrograph Catalog (UCAC) project from 1998 to 2001. It was located...
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  • Small Body Nomenclature (PDF). 20 December 2021. "The USNO Asteroid Connection" (PDF). The USNO Transit. 1 (2). April–May 2009. Archived (PDF) from the...
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    Astrometry Astrometry Department of the U.S. Naval Observatory USNO Astrometric Catalog and related Products Archived 2015-08-26 at the Wayback Machine...
    18 KB (1,865 words) - 12:30, 13 May 2024
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    N. (2012). "The fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". VizieR On-line Data Catalog. 1322. Bibcode:2012yCat.1322....0Z. Bowler, Brendan...
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    (2009). "VizieR On-Line Data Catalog: Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3)". VizieR On-Line Data Catalog: I/315. Originally Published...
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  • satellite used to study the Earth's upper atmosphere UCAC – (catalog) USNO CCD Astrometric Catalog UESAC – (observing program) Uppsala-ESO Survey of Asteroids...
    139 KB (13,307 words) - 02:01, 3 February 2024
  • Zacharias, M. I. (2013-02-01). "The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". The Astronomical Journal. 145 (2): 44. arXiv:1212.6182...
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