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HD 263402


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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

Observations spectrographiques d'etoiles A a spectre particulier et a raies metalliques.
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Catalogue et bibliographie des étoiles A à spectre particulier Premier supplément
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tekboynuz
Sað Açýklýk:06h45m32.62s
Yükselim:+04°23'38.3"
Görünürdeki Parlaklýk:9.02
özdevim Sað Açýklýk:-6.4
özdevim Yükselim:-3.3
B-T magnitude:9.016
V-T magnitude:9.02

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 263402
TYCHO-2 2000TYC 156-594-1
USNO-A2.0USNO-A2 0900-03451411
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