Titlebook: New Problems in Astrometry; Wilhelm Gliese,C. Andrew Murray,R. H. Tucker Book 1974 International Astronomical Union 1974 astrometry.astron

Lamina

Preliminary Results of Relative Declination Observations Made with the Repsold Meridian Circle at CePreliminary results obtained from 6 years of declination observations are presented. Some instrumental details are discussed, and the observed declination system is compared with FK4 in ...

Ornithologist

Contribution des Astrolabes a la Determination du Systeme de Reference Dans L’Hemisphere SudThe potentialities of astrolabe observations which are available for improving the fundamental system, particularly in the southern hemisphere, are discussed. Difficulties arise because of the poor distribution in latitude of the observing stations and diversity of observational programmes.

flex336

On the Improvement of the , System of the FK4 Catalogueth the three instruments of the Cerro Calán Observatory jointly by Chilean and Soviet astronomers. As a result, systematic . cos . errors were found to exist in the FK4 catalogue. For the reduction of star observations according to the SRS program, it is necessary to derive the system of the . corrections for the FK4.

–LOUS

On Stars with the Most Favourable Background in Observational History positions in the sky. Variable and double stars and all stars with |.| ≤ 10° were omitted. The work could be carried out only for the section from 0. to 16. right ascension. The criterion for good observational history was either to have eight or more catalogue entries in the GFH, or to have five or more entries in the Hamburger IdS.

thrombus

Mouvements Propres des Etoiles de Repere du Catalogue Photographique la détermination de la précision que l’on peut attendre de ces résultats..On montre, en outre, que ces écarts ne sont pas imputables à l’hétérogénéité des observations et que l’on ne pourra donc les réduire par la simple création d’un seul et même système d’observation.

勉勵

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ANA

abduction

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