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Observations of active chromosphere stars
It is pointed out that spectroscopic signatures of stellar chromosphericactivity are readily observable. The present study is concerned with newphotometric and spectroscopic observations of active-chromosphere RSCVn, BY Dra, and FK Com stars. Attention is given to the first resultsof a synoptic monitoring program of many active chromosphere stars.During the time from 1980 to 1982, photometric and spectroscopicobservations of 10 known or suspected active-chromosphere objects weremade. The results regarding the individual stars are discussed. Sevenstars observed with the International Ultraviolet Explorer (IUE) are allspectroscopic binaries.
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Osservazione e dati astrometrici
| Costellazione: | Balena |
| Ascensione retta: | 00h21m02.93s |
| Declinazione: | -09°06'43.2" |
| Magnitudine apparente: | 8.567 |
| Distanza: | 1492.537 parsec |
| Moto proprio RA: | 55.7 |
| Moto proprio Dec: | -46.9 |
| B-T magnitude: | 9.665 |
| V-T magnitude: | 8.658 |
Cataloghi e designazioni:
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