/ftp/cats/I/326



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I/326     Pulkovo Catalogue of Reference Stars around GRS    (Narizhnaya+, 2005)
The following files can be converted to FITS (extension .fit or fit.gz)
	pgrsdat.dat spgrsdat.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=I/326
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drwxr-xr-x 317 cats archive 8192 Feb 28 11:16 [Up] -rw-r--r-- 1 cats archive 474 Dec 19 2022 .message -r--r--r-- 1 cats archive 9090 Sep 4 2014 ReadMe -rw-r--r-- 1 cats archive 1658 Sep 4 2014 +footg5.gif -rw-r--r-- 1 cats archive 5341 Sep 4 2014 +footg8.gif -r--r--r-- 1 cats archive 7878 Dec 31 2013 pgrsdat.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 330354 Dec 31 2013 spgrsdat.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : I/326 Pulkovo Catalogue of Reference Stars around GRS (Ryl'kov+, 2005) ================================================================================ The Catalogue of Reference Stars around 72 Galactic Radio-Sources. Ryl'kov V., Narizhnaya N. <Romanian Astronomical Journal Supplement, 15, 187-189 (2005)> =2005RoAJ...15S.187R =2013yCat.1326....0R ================================================================================ ADC_Keywords: Fundamental catalog ; Radio sources ; Positional data Keywords: galactic radio sources - astrometric data - astrometric reference star Abstract: Pulkovo catalogue of reference stars inside 78 fields around galactic radio stars (Pul GRS) of northern sky from H.G. Walter's list (1990A&AS...86..357W) was created. The coordinates of 12495 stars was obtained from the photographic plates of Pulkovo Normal Astrograph (NA, 33/346), which was photographed in 1994-1999 years. Size of worked fields (radius about 20-40 angular seconds) was determined from the resolved problem and having technical resources: modern dimensions of CCD-detector. Precise astronometric coordinates of stars were intending for optical control beyond the positions of radio sources (GRS) by means of CCD-observation. The galactic radio stars can be the frames at the definition of connection between the existed ground and cosmic astronometric reference coordinate sets. Coordinate calculation was realization with used reference stars from catalogue Tycho-2 (ICRF, J2000.0). Error of a unit of weight from reduction coordinates was resulted nearly 0.12"-0.27" (at a number of reference stars were from 12 to 50). Internal precision of catalogue was obtained from 0.02 to 0.20 arcseconds at the both coordinates. Description: Two catalogues are presented. The astrometric positions of 78 radio-sources, their comparison with Hipparcos data, physical character and optical structure theirs stars are resulted in pgrs.dat. The coordinates of 12495 stars, their internal precision, number of used observation and magnitude are resulted in spgrs.dat.