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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

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

True and Possible Contact Binaries in the Hipparcos Catalogue
A comprehensive list of contact binaries included in the HIPPARCOScatalogue is given.

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观测天体数据

星座:大熊座
右阿森松:10h29m26.77s
赤纬:+39°46'08.5"
视星:8.664
距离:198.413 天文距离
右阿森松适当运动:-19.8
赤纬适当运动:-3.4
B-T magnitude:9.188
V-T magnitude:8.708

目录:
适当名称   (Edit)
HD 1989HD 90747
TYCHO-2 2000TYC 3002-443-1
USNO-A2.0USNO-A2 1275-07731378
HIPHIP 51361

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