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Analysis of main-sequence A-type stars showing radial velocity variability.
We obtained high-resolution spectroscopic data for 33 bright (V < 8)A-type HIPPARCOS programme stars at the ``Observatoire deHaute-Provence'' (OHP) in December 2004. All our targets show someindication of radial velocity variability (Grenier et al, 1999), arelocated in or near the lower part of the Cepheid instability strip, andare poorly studied objects. In this contribution, we present the newdata of the most interesting programme stars and we derive a physicalinterpretation for their variable nature.
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| Photoelectric Observations of UV Cassiopeiae
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Cassiopea |
| Ascensione retta: | 23h02m37.38s |
| Declinazione: | +59°36'18.2" |
| Magnitudine apparente: | 7.298 |
| Distanza: | 134.048 parsec |
| Moto proprio RA: | 1.4 |
| Moto proprio Dec: | -3.6 |
| B-T magnitude: | 7.678 |
| V-T magnitude: | 7.33 |
Cataloghi e designazioni:
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