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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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
| Stroemgren and H beta photometry of OB stars in Serpens
Stroemgren and H beta photometry of 25 stars in the field of Serpens arepresented. The excesses, the absolute magnitude and the temperatures ofthe stars are obtained. The masses and the ages are also estimated.
| More radial-velocity measurements in young open clusters
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| Southern open star clusters VI. UBV-Hbeta photometry of 18 clusters from Centaurus to Sagittarius.
Abstract image available at:http://adsabs.harvard.edu/abs/1975A&AS...20..155M
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Serpiente |
| Ascensión Recta: | 18h17m47.04s |
| Declinación: | -12°15'49.5" |
| Magnitud Aparente: | 9.115 |
| Movimiento Propio en Ascensión Recta: | -3.7 |
| Movimiento Propio en Declinación: | -16 |
| B-T magnitude: | 10.793 |
| V-T magnitude: | 9.254 |
Catálogos y designaciones:
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