The Kyiv Meridian Axial Circle catalogue of stars in fields with extragalactic radio sources
1
Main Astronomical Observatory, National Academy of Sciences of Ukraine, Zabolotnogo 27, 03680 Kyiv-127, Ukraine e-mail: laz@mao.kiev.ua
2
Astronomical Observatory of the Kyiv National University, Observatornaya 3, 04053 Kyiv-53, Ukraine e-mail: babenko@observ.univ.kiev.ua
Received:
20
December
2004
Accepted:
7
March
2005
A catalogue of astrometric (positions, proper motions) and photometric
(B, V, R, r', J) data
of stars in fields with ICRF objects has been compiled at the Observatory
of the
National Academy
of Sciences of Ukraine and the Kyiv University Observatory. All fields are
located in the declination
zone from 0° to +30°;
the nominal field size is 46'(right ascension
(declination). The
observational basis of this work is 1100 CCD scans down to 
mag which were
obtained with the Kyiv meridian axial circle in 2001–2003.
The catalogue is presented in two versions. The
version KMAC1-T contains 159 fields (104 796 stars) and was obtained with
reduction to the
Tycho2 catalogue. For another 33 fields, due to a low sky density of
Tycho2 stars, the reduction
was found to be unreliable. Transformation to the ICRF
system in the second version of the catalogue (KMAC1-CU) was
performed
using the UCAC2 and CMC13 catalogues as a reference; it contains 115 032 stars
in 192 fields and is of slightly better accuracy. The
external accuracy of one catalogue position is about 50–90 mas
for 
mag stars. The average error of photometry is better than 0.1 mag for stars down to 16 mag.
Key words: astrometry / reference systems / catalogs
© ESO, 2005