Toulouse AC Zone Data Reduced to ACRS (Urban+ 1996)

Details Toulouse AC Zone Data Reduced to ACRS (Urban+ 1996) Toulouse AC Zone Data Reduced to ACRS (Urban+ 1996)

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ycat.1232....0u&link_type=abstract

VizieR On-line Data Catalog: I/232. Originally published in: U.S. Naval Obs., unpublished (1996)

Astronomy and Astrophysics

Astronomy

Astrographic Zones, Historical Catalog, Photographic Catalog, Positional Data, Regional Catalog, Surveys, Cross Identifications

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 Toulouse Zone, whose plates are centered between declinations +5 and +11 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 almost 270,000 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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