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HD 10658


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Spectroscopy of V471 Tau. I - Review of basic properties
Spectroscopic observations of the eclipsing binary V471 Tau are reportedand analyzed. Data obtained mainly in the red band at Mt. WilsonObservatory and KPNO during the period 1975-1983 are compiled inextensive tables and graphs, and the radial velocity of the K dwarfcomponent is determined using a Griffin-mask technique. Resultsdiscussed include: (1) distance 44 + or - 6 pc, (consistent withmembership in the Hyades), (2) apparent period variation consistent witha third component, (3) emissionlike features affecting theradial-velocity determination, (4) transient features consistent withthe presence of flares, and (5) phase-coherent variation in H-alpha(attributed to the action of the white-dwarf Lyman continuum emission onthe K dwarf).

Discovery of two FK COM stars in the southern hemisphere.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1982MNRAS.200..489C&db_key=AST

Variability of HR 904 and HR 8421
Not Available

Photoelectric radial velocities. V. 69 southern HR stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972MNRAS.155..449G&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Balena
Ascensione retta:01h43m54.80s
Declinazione:-04°45'56.0"
Magnitudine apparente:6.19
Distanza:219.78 parsec
Moto proprio RA:-24.5
Moto proprio Dec:-31.7
B-T magnitude:8.216
V-T magnitude:6.374

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 10658
TYCHO-2 2000TYC 4687-2317-1
USNO-A2.0USNO-A2 0825-00394264
BSC 1991HR 507
HIPHIP 8094

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