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HD 198741


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Ýlgili Makaleler

Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

Multicolor photometry of metallic-line stars. III. A photometric catalogue
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..175M&db_key=AST

UVBY photometry of AM and AP stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973AJ.....78..192W&db_key=AST

New Peculiar Stars Noted on Objective-Prism Plates
Not Available

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yunus
Sað Açýklýk:20h52m19.13s
Yükselim:+05°56'56.7"
Görünürdeki Parlaklýk:8.743
Uzaklýk:270.27 parsek
özdevim Sað Açýklýk:12.1
özdevim Yükselim:3.3
B-T magnitude:9.002
V-T magnitude:8.765

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 198741
TYCHO-2 2000TYC 524-2540-1
USNO-A2.0USNO-A2 0900-19125074
HIPHIP 103021

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