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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
Observations of OB-stars, made in 1959 and 1960 at the Leiden SouthernStation near Hartebeespoortdam, South Africa, with the VBLUW photometerattached to the 90 cm light-collector, are given in this paper. They arecompared with photometry obtained by \cite[Graham (1968),]{gra68}\cite[Walraven & Walraven (1977),]{wal77} \cite[Lub & Pel(1977)]{lub77} and \cite[Van Genderen et al. (1984).]{gen84} Formulaefor the transformation of the present observations to those of\cite[Walraven & Walraven (1977)]{wal77} and \cite[Lub & Pel(1977)]{lub77} are given. Table 4 is only available in electronic format the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) orvia http://cdsweb.u-strasbg.fr/Abstract.html
| Broad-band photometry of selected southern ultraviolet-bright stars.
Not Available
| Intermediate- and wide-band photometry of NGC 6025.
Abstract image available at:http://adsabs.harvard.edu/abs/1975PASP...87..975K
| The open cluster NGC 6025
Abstract image available at:http://adsabs.harvard.edu/abs/1971PASP...83..800F
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Triangolo Australe |
| Ascensione retta: | 16h03m28.90s |
| Declinazione: | -60°29'12.8" |
| Magnitudine apparente: | 8.353 |
| Distanza: | 1162.791 parsec |
| Moto proprio RA: | -1.6 |
| Moto proprio Dec: | -2.8 |
| B-T magnitude: | 8.409 |
| V-T magnitude: | 8.358 |
Cataloghi e designazioni:
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