A pilot astrometric survey of 59 northern ICRF radio-sources

Details A pilot astrometric survey of 59 northern ICRF radio-sources A pilot astrometric survey of 59 northern ICRF radio-sources

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1043..175p&link_type=abstract

EXPLORING THE SOLAR SYSTEM AND THE UNIVERSE. AIP Conference Proceedings, Volume 1043, pp. 175-178 (2008).

Computer Science

Databases

Astronomical Observations, Astronomical And Space-Research Instrumentation, Artificial Earth Satellites, Interstellar Medium And Nebulae In External Galaxies, Asteroids, Meteoroids, Spectroscopy And Spectrophotometry, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Quasars

Scientific paper

In the Bucharest Astronomical Observatory we started an observational program aiming at the improvement of positions for optical counterparts of ICRF radiosources by narrow-field CCD observations and the accurate densification of the optical frame and extension to fainter magnitudes. We also estimated the errors in UCAC2, USNO B1.0 and 2MASS catalogs by CCD observations of ICRF sources and we prepared a catalog of intermediary reference stars around ICRF optical counterparts. Comparison with three independent telescope/catalog datasets shows that the precision obtained here represents an important improvement on previous works.

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