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Contribution to the study of composite spectra - IX. Spectroscopic orbital elements of 10 systems*
We present the results of a radial-velocity study of 10 spectroscopicbinaries with composite spectra that were observed at Observatoire deHaute-Provence with the CORAVEL instrument. Those systems, including acool, evolved, primary and a hot secondary of type B or A, were found tobe spectroscopic binaries. We computed their orbital elements for thefirst time. For three systems, the large mass function implies i~90°, with the possibility of eclipses. Mean angular separations arevery small (a<= 0.010 arcsec), which makes those systems resolvableonly with multi-pupil large interferometers.
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Посматрања и Астрометриски подаци
| Сазвежђа: | Рис |
| Ректацензија: | 07h15m38.29s |
| Deклинација: | +46°04'13.2" |
| Apparent магнитуда: | 8.908 |
| Даљина: | 418.41 parsecs |
| Proper motion RA: | -5.2 |
| Proper motion Dec: | -17.4 |
| B-T magnitude: | 9.457 |
| V-T magnitude: | 8.954 |
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