USNO CCD Astrograph Catalog
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Alternative names | UCAC |
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The USNO CCD Astrograph Catalog (UCAC) is an astrometric star catalog of the United States Naval Observatory.
UCAC-1
The first preliminary edition, published in March 2000, gives the positions and proper motions of over 27 million stars in the southern hemisphere in the brightness range 8–16.
UCAC-2
The second issue was the IAU published General Assembly in Sydney (2003) and includes positions and proper motions of about 50 million stars.
UCAC-3
The third edition was published in the IAU General Assembly in Rio (August 2009).
UCAC-4
The fourth edition was published in August 2012.
Since Spring 2015, the successor URAT is available.
UCAC-5
The fifth edition was published in February 2017.[1][2]
References
- ^ "UCAC5 - nowy katalog pozycji i ruchów własnych gwiazd" (in Polish). 2017-03-29.
- ^ UCAC5: New Proper Motions using Gaia DR1
External links
Categories:
- CS1 Polish-language sources (pl)
- Articles lacking in-text citations from October 2015
- All articles lacking in-text citations
- Articles needing additional references from October 2015
- All articles needing additional references
- Articles with multiple maintenance issues
- Articles with infoboxes completely from Wikidata
- Astronomical catalogues of stars
- All stub articles
- Astronomical catalogue stubs