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TYC 8685-45-1


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Absolute proper motions of open clusters. I. Observational data
Mean proper motions and parallaxes of 205 open clusters were determinedfrom their member stars found in the Hipparcos Catalogue. 360 clusterswere searched for possible members, excluding nearby clusters withdistances D < 200 pc. Members were selected using ground basedinformation (photometry, radial velocity, proper motion, distance fromthe cluster centre) and information provided by Hipparcos (propermotion, parallax). Altogether 630 certain and 100 possible members werefound. A comparison of the Hipparcos parallaxes with photometricdistances of open clusters shows good agreement. The Hipparcos dataconfirm or reject the membership of several Cepheids in the studiedclusters. Tables 1 and 2 are only available in electronic form at theCDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

Photometry of the Open Clusters NGC3960 and NGC5823
Abstract image available at:http://adsabs.harvard.edu/abs/1981AJ.....86.1210J

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观测天体数据

星座:圓規座
右阿森松:15h05m41.58s
赤纬:-55°40'38.8"
视星:10.596
右阿森松适当运动:-1.9
赤纬适当运动:-7.5
B-T magnitude:11.067
V-T magnitude:10.635

目录:
适当名称   (Edit)
TYCHO-2 2000TYC 8685-45-1
USNO-A2.0USNO-A2 0300-22861471
HIPHIP 73860

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