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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
| Five-colour photometry of OB-stars in the Southern Hemisphere
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| Broad-band photometry of selected southern ultraviolet-bright stars.
Not Available
| On the 4430 A interstellar band - A visual classification
A system of visual classification of the strength of the interstellarband 4430 A has been developed, based on spectra taken at spectralclassification dispersion. The intensity of the band was divided into 8main classes, defined by a group of selected standard stars. The systemwas applied to 1,111 southern OB stars contained in the catalog ofspectral types by Garrison, Hiltner, and Schild (1977). The mean errorin the classification was estimated to be plus or minus 1 class.Equivalent widths were measured for 100 stars; an excellent correlationwith the visual estimations was obtained. A calibration between thesetwo parameters is given.
| MK spectral classifications for southern OB stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977ApJS...35..111G&db_key=AST
| Intermediate- and wide-band photometry of NGC 6025.
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| The open cluster NGC 6025
Abstract image available at:http://adsabs.harvard.edu/abs/1971PASP...83..800F
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Triángulo Austral |
| Ascensión Recta: | 16h03m44.52s |
| Declinación: | -60°30'47.4" |
| Magnitud Aparente: | 8.104 |
| Distancia: | 1562.5 parsecs |
| Movimiento Propio en Ascensión Recta: | -3.2 |
| Movimiento Propio en Declinación: | -1.7 |
| B-T magnitude: | 8.119 |
| V-T magnitude: | 8.106 |
Catálogos y designaciones:
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INHABITED SKY
