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HD 189921

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관련 글
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관련 글

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.
Equivalent widths and rotational velocities of southern early-type stars Not Available
UV excess stars and radio sources in the Aquila ring. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&A....31..207I&db_key=AST
On the reality of the stellar ring in Aql. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971A&A....13...71P&db_key=AST
Lichtelectrische Untersuchungen eines nahen Sternringes in Aql. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1969A&A.....3..210I&db_key=AST
Distances of southern B-stars and galactic structure from Hγ-luminosities Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1961MNRAS.123..191B&db_key=AST

관련 링크

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관측 및 측정 데이터

별자리:	독수리자리
적경:	20^h02^m10.32^s
적위:	+10Â°44'20.2"
가시등급:	6.977
거리:	325.733 파섹
적경상의 고유운동:	-1.2
적위상의 고유운동:	-10.5
B-T magnitude:	6.861
V-T magnitude:	6.968

천체목록:

일반명	(Edit)
HD 1989	HD 189921
TYCHO-2 2000	TYC 1075-3272-1
USNO-A2.0	USNO-A2 0975-17614277
HIP	HIP 98641

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