On the Improvement of the αδ System of the FK4 Catalogue

Anguita, C.; Carrasco, G.; Loyola, P.; Naumova, A. A.; Nemiro, A. A.; Polozhentsev, D. D.; Polozhentseva, T. A.; Shishkina, V. N.; Taibo, R.; Timashkova, G. M.; Varin, M. P.; Varina, V. A.; Zverev, M. S.

doi:10.1007/978-94-010-2199-9_6

Cited by 3 publications

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“…More recent observations have been discussed by Gliese (1970Gliese ( , 1974. From the reports by Anguita et al (1968Anguita et al ( , 1971Anguita et al ( , 1974 and Hog and Nikoloff (1974) it has become clear that the FK4 system in right ascension requires an appreciable correction in the declination zone -50° to -80°. Zverev (1968) has reported on absolute observations made in the USSR that indicate some significant regional deviations from the FK4 in right ascension, and Yasuda (1972) has reported on semi-absolute observations which resulted in corrections to right ascensions.…”

Section: Compilation Of a Supplement To The Fk5mentioning

confidence: 99%

Plans for the Improvement and Extension of the FK4

Fricke¹

1974

Symp. - Int. Astron. Union

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Recent absolute and differential observations of fundamental stars have indicated the need for a revision of the fundamental reference system represented by the positions and proper motions of the FK4. The revision of the FK4 will be based on modern fundamental and differential observations of high accuracy which allow (a) the extension of the FK4 to fainter stars, (b) the improvement of the system, (c) the derivation of individual corrections to positions and proper motions, and (d) the determination of the equinox and its motion. The completion of the programme, resulting in the FK5 and a Supplement giving data in the system of FK5 for bright stars and faint objects (including optical counterparts of radio sources), may be expected about 1980.

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Section: Compilation Of a Supplement To The Fk5mentioning

confidence: 99%

Plans for the Improvement and Extension of the FK4

Fricke¹

1974

Symp. - Int. Astron. Union

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“…Using the data of the SPF-1, SPF-3, the southern part of the SP-2 (from -42° to -90°) and the series of absolute determinations of right ascension made with the Pulkovo large transit instrument, Anguita et al (1973) compiled a system of corrections Aa 8 cos 5 to the FK4 system. Figure 4 shows the systematic differences of these cata logues and the FK4, as given in the paper just mentioned.…”

Section: Compilation Of a System Of Corrections Amentioning

confidence: 99%

Observations in Chile and Results Related to Southern Hemisphere Systems (Invited Paper)

Anguita

1974

Symp. - Int. Astron. Union

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Abstract. The astrometric observations made at the Cerro Calan observatory with several instruments since 1962 are outlined. The resulting catalogues are in press or approaching publication, and are described in some detail. An account is given of the observational projects currently in progress.The various catalogues are combined in order to demonstrate the large and well-determined systematic differences in Aa 8 cosd between the Cerro Calan observations and the FK4. It is concluded that the FK4 system requires some improvement if it is to fulfil the requirements of a fundamental reference system in the southern hemisphere.

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Plans for the Improvement and Extension of the FK4

Fricke¹

1974

New Problems in Astrometry

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On the Improvement of the αδ System of the FK4 Catalogue

Cited by 3 publications

References 0 publications

Plans for the Improvement and Extension of the FK4

Plans for the Improvement and Extension of the FK4

Observations in Chile and Results Related to Southern Hemisphere Systems (Invited Paper)

Plans for the Improvement and Extension of the FK4

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