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HD 186998

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The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1995ApJS...99..135A&db_key=AST
Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue. We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.
Mesures de vitesses radiales. VII. Accompagnement AU sol DU programme d'observation DU satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos. We publish 734 radial velocities of stars distributed in 28 fields of4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot etal. 1990 and 1992), using the Fehrenbach objective prism method.
MK Spectral Types for Some Bright F Stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974PASP...86...70C&db_key=AST
Luminosities and motion of the F-type stars. II. Metal-deficient stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972ApJ...175..787E&db_key=AST
Short-Period Variability of b, a, and F Stars. III. a Survey of Delta Scuti Variable Stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1969ApJS...19...79B&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Volpetta
Ascensione retta:	19^h46^m39.50^s
Declinazione:	+25Â°08'02.0"
Magnitudine apparente:	6.62
Distanza:	61.087 parsec
Moto proprio RA:	80.1
Moto proprio Dec:	-2.9
B-T magnitude:	6.99
V-T magnitude:	6.688

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 186998
TYCHO-2 2000	TYC 2143-1960-1
USNO-A2.0	USNO-A2 1125-14194003
BSC 1991	HR 7533
HIP	HIP 97319

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