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HD 181593


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Radial velocity measurements. IV - Ground-based accompaniment to the HIPPARCOS observation program
The paper presents 396 radial velocities of stars distributed in 19fields of 4 x 4 degrees. The study employs the Fehrenbach objectiveprism method and the same measuring technique used in a previous paper(Fehrenbach et al., 1987).

UBV photometry of stars whose positions are accurately known. II
The present report on the UBV observations of stars with favorableastrometric history gives attention to stars of the BD zones lyingbetween 50 and 54 deg. These observations and their reductions wereperformed from August 1983 to August 1984, as described by Oja (1984).Results are presented as tables for both the standard stars and theprogram stars. Comparisons are conducted between the present Vmagnitudes and those of the NPZT (1982) and AGK3R (1978) catalogs.

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Osservazione e dati astrometrici

Costellazione:Cigno
Ascensione retta:19h18m16.28s
Declinazione:+53°27'24.8"
Magnitudine apparente:8.376
Distanza:273.973 parsec
Moto proprio RA:3.6
Moto proprio Dec:6.3
B-T magnitude:8.432
V-T magnitude:8.381

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 181593
TYCHO-2 2000TYC 3920-1352-1
USNO-A2.0USNO-A2 1425-09598066
HIPHIP 94865

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