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HD 190025

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Stars with ISM Polarization Observed with HPOL. II Polarization data are given for stars whose polarizations are mostlyinterstellar which were observed with the University of Wisconsinspectropolarimeter (HPOL) during 1995-2003. Several cases are found forwhich K in the Serkowski Law for ISM polarization is higher than allowedby published formulas.
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.
Catalog of O-B stars observed with Tokyo Meridian Circle A catalog of the O-B stars, selected from 'Blaauw-Parenago' list andRubin's catalog, has been compiled on the FK4 system by the observationsmade with Gautier 8-inch Meridian Circle at the Tokyo AstronomicalObservatory during the period, 1971 to 1979. It contains 1059 stars andwas compiled for the future establishment of high precision propermotions of O-B stars.
H-beta photometry of northern intermediate galactic latitude early-type stars and galactic structure away from the plane Photoelectric H-beta photometry is presented for 255 early-type stars atintermediate galactic latitudes. Absolute magnitudes and distances arederived for the more luminous stars. Those with visual magnitudes lessthan or equal to 2.5 and at distances of up to 1 kpc from the galacticplane may follow the spiral structure in the plane.
UBV photometry and MK spectral classification of northern early-type stars at intermediate galactic latitudes Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977MNRAS.180..691H&db_key=AST
The high-luminosity boundary of the beta CEP instability strip. Abstract image available at:http://adsabs.harvard.edu/abs/1972AJ.....77..381P
A search for stars of the BET CMa type. Not Available

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Pozíciós és asztrometriai adatok

Csillagkép:	Hattyú
Rektaszcenzió:	20^h01^m13.19^s
Deklináció:	+43Â°02'37.6"
Vizuális fényesség:	7.529
Távolság:	546.448 parszek
RA sajátmozgás:	1.4
Dec sajátmozgás:	0.1
B-T magnitude:	7.41
V-T magnitude:	7.52

Katalógusok és elnevezések:

Megfelelő nevek	(Edit)
HD 1989	HD 190025
TYCHO-2 2000	TYC 3158-551-1
USNO-A2.0	USNO-A2 1275-13103034
HIP	HIP 98558

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