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HD 191812

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관련 글

Absolute proper motions of open clusters. I. Observational data Mean proper motions and parallaxes of 205 open clusters were determinedfrom their member stars found in the Hipparcos Catalogue. 360 clusterswere searched for possible members, excluding nearby clusters withdistances D < 200 pc. Members were selected using ground basedinformation (photometry, radial velocity, proper motion, distance fromthe cluster centre) and information provided by Hipparcos (propermotion, parallax). Altogether 630 certain and 100 possible members werefound. A comparison of the Hipparcos parallaxes with photometricdistances of open clusters shows good agreement. The Hipparcos dataconfirm or reject the membership of several Cepheids in the studiedclusters. Tables 1 and 2 are only available in electronic form at theCDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
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.
The Equatorial Coordinates of Components of Triple Stars from the Astrometric Satellite HIPPARCOS Input Catalogue - Part Two - the Results of Statistical Study of Data from Aitken's Catalogue of Double Stars / ADS Not Available
Positions moyennes et mouvements propres de 355 etoiles DU GC de la zone de declinaison +33 +36. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1976A&AS...26..219M&db_key=AST
Photometric studies of northern galactic clusters. I. Roslund No. 5. Abstract image available at:http://adsabs.harvard.edu/abs/1971AJ.....76..464L
Mikrometermessungen von Doppelsternen. VI. Not Available
Etude pour chaque champ de l'absorption et de la repartition des vitesses radiales EN fonction de la distance. Not Available
La mesure des vitesses radiales au prisme objectif. Not Available
La mesure des vitesses radiales au prisme objectif. VII - 2e liste de vitesses radiales déterminées au prisme objectif à vision directe Not Available
Stellar Spectra and Colors in an Irregular Region in Cygnus. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1953ApJ...118...77A&db_key=AST

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관측 및 측정 데이터

별자리:	고니자리
적경:	20^h10^m35.12^s
적위:	+33Â°38'02.5"
가시등급:	7.755
거리:	271.739 파섹
적경상의 고유운동:	-10.5
적위상의 고유운동:	-19.9
B-T magnitude:	7.86
V-T magnitude:	7.764

천체목록:

일반명	(Edit)
HD 1989	HD 191812
TYCHO-2 2000	TYC 2675-3113-1
USNO-A2.0	USNO-A2 1200-14617831
HIP	HIP 99409

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