San Fernando AC Zone Data Reduced to ACRS (Urban+ 1995)

Details San Fernando AC Zone Data Reduced to ACRS (Urban+ 1995) San Fernando AC Zone Data Reduced to ACRS (Urban+ 1995)

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat.1222....0u&link_type=abstract

VizieR On-line Data Catalog: I/222. Originally published in: unpublished, (1995)

Astronomy and Astrophysics

Astronomy

Astrographic Zones, Astrometric Data, Combined Data, Cross Identifications, Finding Lists, Historical Catalog, Magnitudes: Photographic, Photographic Catalog, Plate Areas, Plate Data, Positional Data, Regional Catalog, Surveys

Scientific paper

The U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system of the FK5. The data from the San Fernando Zone, whose plates are centered between declinations -3 and -9 degrees (eq. 1900), have been analyzed for scale, rotation, tilt, coma, magnitude equation, radial distortion and distortions introduced by the use of reseaux in the Carte du Ciel program. The result is a positional catalog of over 225,000 stars on eq. J2000.0, epoch of observation. Additionally, all stars have been matched with the Tycho Input Catalog (revised); those numbers have been added for additional identification purposes. (2 data files).

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