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HD 171835


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관련 글

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

Untersuchung der offenen Sternhaufen IC 4665, NGC 6633, IC 4756
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관측 및 측정 데이터

별자리:뱀자리
적경:18h36m41.31s
적위:+06°02'32.7"
가시등급:7.839
거리:254.453 파섹
적경상의 고유운동:2.4
적위상의 고유운동:-0.3
B-T magnitude:8.219
V-T magnitude:7.871

천체목록:
일반명   (Edit)
HD 1989HD 171835
TYCHO-2 2000TYC 458-1457-1
USNO-A2.0USNO-A2 0900-13264042
HIPHIP 91244

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