/ftp/cats/I/219



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I/219   ==OBSOLETE version of Catalogue==
10-Nov-1998: See AC2000, Cat. I/247
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Query from: http://vizier.cds.unistra.fr/cgi-bin/VizieR?-source=I/219
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drwxr-xr-x 317 cats archive 8192 Feb 28 11:16 [Up] drwxr-xr-x 2 cats archive 216 Jan 12 2023 [TAR file] -rw-r--r-- 1 cats archive 376 Dec 19 2022 .message -rw-r--r-- 1 cats archive 36 Nov 10 1998 =obsolete= -r--r--r-- 1 cats archive 6041 Feb 24 1998 ReadMe -r--r--r-- 1 cats archive 9787589 Feb 23 1996 capeac.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -rw-r--r-- 1 cats archive 17204 Feb 24 1998 notes.gz [Uncompressed]
Beginning of ReadMe : I/219 Cape AC Zone Data Reduced to ACRS (Urban+ 1996) ================================================================================ Cape AC Zone Data Reduced to ACRS Urban S. E., Corbin T. E. <Astron. Astrophys. 305, 989 (1996)> =1996A+A...305..989U ================================================================================ ADC_Keywords: Astrographic zones - 135; Astrometric data - 140; Combined data - 240; Cross identifications - 255; Finding lists - 280; Historical catalog - 343; Magnitudes, photographic - 380; Photographic catalog - 460; Plate areas - 645; Plate data - 650; Positional data - 660; Regional catalog - 705; Surveys - 975 Abstract: 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 Cape Zone, whose plates are centered between declinations -41 and -51 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 544,000 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.