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HD 90747


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A revised catalogue of delta Sct stars
An extensive and up-dated list of delta Sct stars is presented here.More than 500 papers, published during the last few years, have beenrevised and 341 new variables have been added to our last list, sixyears ago. This catalogue is intended to be a comprehensive review onthe observational characteristics of all the delta Sct stars known untilnow, including stars contained in earlier catalogues together with othernew discovered variables, covering information published until January2000. In summary, 636 variables, 1149 references and 182 individualnotes are presented in this new list. Tables 1 and 2 will be accessibleonly in electronic form at the CDS via anonymous ftp tocdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

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True and Possible Contact Binaries in the Hipparcos Catalogue
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Datos observacionales y astrométricos

Constelación:Osa Mayor
Ascensión Recta:10h29m26.77s
Declinación:+39°46'08.5"
Magnitud Aparente:8.664
Distancia:198.413 parsecs
Movimiento Propio en Ascensión Recta:-19.8
Movimiento Propio en Declinación:-3.4
B-T magnitude:9.188
V-T magnitude:8.708

Catálogos y designaciones:
Nombres Propios
HD 1989HD 90747
TYCHO-2 2000TYC 3002-443-1
USNO-A2.0USNO-A2 1275-07731378
HIPHIP 51361

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