USNO_CCD_Astrograph_Catalog

First USNO CCD Astrograph Catalog
Alternative namesUCAC
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The USNO CCD Astrograph Catalog (UCAC) is an astrometric star catalog of the United States Naval Observatory.

Edition Description
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