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TYC 4020-780-1


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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

Memberships and CM diagrams of young open clusters. I - NGC 225
Results are presented on astrometric, photometric, and spectroscopicstudies of the loose young open cluster NGC 225, conducted on the basisof observations and archived plate material. The main cluster parametersderived in this study are presented in the form of a table. Astrometricmember candidates were checked against photometric and spectroscopiccriteria, yielding an enhanced list of cluster members which is suitablefor further and more extensive investigations.

A spectral survey of early-type stars in the region of Cassiopeia using an objective prism
Not Available

Distance Moduli of Open Clusters.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1965ApJS...12..215H&db_key=AST

Spectral Classification in Nine Open Clusters.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1962ApJ...136..788S&db_key=AST

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관측 및 측정 데이터

별자리:카시오페이아자리
적경:00h44m40.46s
적위:+61°54'01.8"
가시등급:9.664
적경상의 고유운동:-5.5
적위상의 고유운동:-0.3
B-T magnitude:9.889
V-T magnitude:9.683

천체목록:
일반명   (Edit)
TYCHO-2 2000TYC 4020-780-1
USNO-A2.0USNO-A2 1500-00773724
HIPHIP 3499

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