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Radial velocities of population II binary stars. I.
Radial velocities for 114 Hipparcos stars, mostly high transversevelocity binaries without previous radial velocity measurements, arepublished. Measurements are made with the CORAVEL-type radial velocityspectrometer. The accuracy of measurements is better than 1 km/s. Twostars, BD +30 deg 2129A and HD 117466AB are found to be radial velocityvariables, and three more stars, HD 119515A, HD 131597AB, and HD 153344,are possible radial velocity variables.
| The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Cancro |
| Ascensione retta: | 09h22m11.79s |
| Declinazione: | +32°39'01.7" |
| Magnitudine apparente: | 8.963 |
| Distanza: | 10000000 parsec |
| Moto proprio RA: | 2.4 |
| Moto proprio Dec: | -1.2 |
| B-T magnitude: | 10.266 |
| V-T magnitude: | 9.071 |
Cataloghi e designazioni:
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