Dictionary of Nomenclature of Celestial Objects
(Last update: 26-Nov-2020)

Result of query: info cati UCAC$

Details on Acronym:   UCAC
   UCAC (USNO CCD Astrographic Catalog) (Not yet in Simbad) Write:<<UCAC NNNNNNNN>> N: About 40000000 Object:*  (SIMBAD class: Star) Note:Astrometric survey, all Southern Hemisphere:
- mostly stars 7.5 to 16.5 magnitude range
- one spectral bandpass (around 610 nm)
- high precision, 20 mas for stars to about 14 mag
- direct link to Hipparcos stars
- alternatively, strong link to ICRF sources with additional observations in parallel
- project start: Jan 25, 1998
The stars in the catalog are ordered by declination. Auth.:ZACHARIAS N.
Originof the Acronym: p = Pre-registered to IAU Comm.5

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