This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (October 2015) (Learn how and when to remove this message)This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "USNO CCD Astrograph Catalog" – news · newspapers · books · scholar · JSTOR (October 2015) (Learn how and when to remove this message) (Learn how and when to remove this message)
First USNO CCD Astrograph Catalog
Alternative namesUCAC
[edit on Wikidata]

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

  1. ^ "UCAC5 - nowy katalog pozycji i ruchów własnych gwiazd" (in Polish). 2017-03-29.
  2. ^ UCAC5: New Proper Motions using Gaia DR1

External links


Categories