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Radial Velocities of Population II Stars. II.
A program for radial velocity measurements of Population II stars wasstarted in 1988 and was carried out during six observing runs. Theprogram includes metal-deficient stars, components of Population IIvisual binaries or common proper motion stars, suspected radial velocityvariables and the Population II stars from the Hipparcos program. Themeasurements were made with the 1 meter reflector at the MaidanakObservatory in Uzbekistan. The average error of a single measurement isabout 0.6 km/s, but for stars at 13 mag or for extremely metal-deficientstars the error is about 2.5 km/s. The catalog contains 621 measurementsfor 164 stars.
| The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Orsa Maggiore |
| Ascensione retta: | 11h27m42.35s |
| Declinazione: | +34°15'22.6" |
| Magnitudine apparente: | 8.72 |
| Distanza: | 10000000 parsec |
| Moto proprio RA: | 27.8 |
| Moto proprio Dec: | -56.2 |
| B-T magnitude: | 10.13 |
| V-T magnitude: | 8.837 |
Cataloghi e designazioni:
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