Precise optical positions for radio/optical astrometric sources in the southern hemisphere

Details Precise optical positions for radio/optical astrometric sources in the southern hemisphere Precise optical positions for radio/optical astrometric sources in the southern hemisphere

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...51..425c&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 51, Mar. 1983, p. 425-428. Research supported by the Universidad de Chile.

Astronomy and Astrophysics

Astrophysics

6

Astrometry, Astronomical Coordinates, Celestial Reference Systems, Extragalactic Radio Sources, Inertial Reference Systems, Southern Sky, Astronomical Catalogs, Position Errors

Scientific paper

The precise positions, relative to the Perth 70 Catalog, are presented for the optical counterparts of 22 radio/optical astrometric sources south of delta approximately plus 2. These astrometric sources are included in the IAU Commission 24 preliminary list of candidates to be used as benchmark radio sources in the establishment of an inertial reference frame. Results show accuracy levels of approximately 0.2 sec in both coordinates.

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