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HD 137884


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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

A Finding List of Early-Type Stars in Regions of Intermediate Galactic Latitude
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1969ApJ...157..327U&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yilan
Sað Açýklýk:15h28m32.98s
Yükselim:+00°36'25.4"
Görünürdeki Parlaklýk:7.104
Uzaklýk:102.041 parsek
özdevim Sað Açýklýk:-43.3
özdevim Yükselim:6.9
B-T magnitude:7.522
V-T magnitude:7.139

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 137884
TYCHO-2 2000TYC 337-844-1
USNO-A2.0USNO-A2 0900-08073323
HIPHIP 75756

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