INVESTIGADORES
ORELLANA Rosa Beatriz
congresos y reuniones científicas
Título:
Determinación preliminar de la orientación relativa SAO-HIPPARCOS
Autor/es:
CIONCO, R. G.; ORELLANA, R. B.; ARIAS, E. F.; VUCETICH, H.
Lugar:
San Juan
Reunión:
Congreso; Reunion de la Asociación Argentina de Astronomía; 1997
Institución organizadora:
Observatorio Félix Aguilar
Resumen:
The International Astronomical Union (IAU) adopted the celestial reference
system of the International Earth Rotation Service as the new conventional
celestial reference system under the name International Celestial Reference
System (ICRS). It is materialized by the coordinates of a set of extragalactic
objects determined with the technique of Very Long Baseline Interferometry
(VLBI), the International Celestial Reference Frame (ICRF). The stellar
reference frame of Hipparcos satellite will materialize the ICRS in the optical
frequences. It is of interest to link some major stellar catalogues, such as the
SAO (Smithsonian Astrophysical Observatory) to the ICRF to take profit of old
observations of minor planets and comets. We present hereafter the results of a
preliminary determination of the relative orientation SAO-HIPPARCOS by a
weighted least squares adjustment