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HD 175579

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Spectral Classification of Stars in A Supplement to the Bright Star Catalogue MK spectral types are given for about 584 stars in A Supplement to theBright Star Catalogue. These are compared with Hipparcos parallaxes tocheck the reliability of those classifications. The estimated errors are+/-1.2 subtypes, and 10% of the luminosity classes may be wrong.
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.
Radial velocity measurements. II - Ground-based observations of the program stars for the HIPPARCOS satellite New radial velocities for 446 stars of magnitude 9.0 or brighter in 1616-sq-deg fields of the Northern Hemisphere are determined by automaticPDS measurement of 80-A/mm-dispersion spectra obtained at theObservatoire de Haute Provence using a 17-cm-diameter objective prism.The fields were selected to provide data for the input catalog of theESA Hipparcos astrometric satellite. The measurement techniques andprecision are discussed, and the results are presented in extensivetables and graphs.
The photometric variability of Ap STAR 10 AQL Not Available
Photometric behavior of magnetic stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1968ApJ...154..945S&db_key=AST
Nova Herculis 1960 Not Available

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Osservazione e dati astrometrici

Costellazione:	Ercole
Ascensione retta:	18^h55^m28.37^s
Declinazione:	+13Â°13'20.9"
Magnitudine apparente:	7.026
Distanza:	220.264 parsec
Moto proprio RA:	7.6
Moto proprio Dec:	3.8
B-T magnitude:	7.083
V-T magnitude:	7.031

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 175579
TYCHO-2 2000	TYC 1051-194-1
USNO-A2.0	USNO-A2 0975-13600568
HIP	HIP 92876

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