The fields of reference stars for optical positional observations of astrometric extragalactic radio sources

Autor:	A. A. Dement'eva, V. P. Ryl'kov
Rok vydání:	1996
Předmět:	Physics Stars Astronomy Astronomy and Astrophysics Astrophysics Ccd detector Instrumentation
Zdroj:	Astronomical & Astrophysical Transactions. 9:127-138
ISSN:	1476-3540 1055-6796
DOI:	10.1080/10556799608208218
Popis:	The Pulkovo programme (Pul ERS) and the techniques used to create a catalogue of coordinates and magnitudes for more than 7000 faint stars in 73 small fields around extragalactic radiosources (ERS) are described. Accurate positions of stars in the fields around ERS 2200+420 and ERS 2021+614 are given. The catalogue containing 223 stars is presented. The errors of coordinate reductions in the system of reference stars from the CMC catalogue are found to be 1.5–2.0 times smaller than for those in the system of the PPM catalogue. This programme (Pul ERS) is required for quick identification of the extragalactic radio sources and for obtaining their characteristics from observations with large telescopes and CCD detectors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::30987ae47c4740076de63d893e37ee91 https://doi.org/10.1080/10556799608208218 Zobrazit plný text záznamu