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Search for Faint Companions to Nearby Solar-like Stars using the Adaptive Optics System at Mount Wilson Observatory
We present results of a search for faint companions to nearby (d<25pc) solar-like (F and G spectral type) stars using the natural guidestar adaptive optics system on the Mount Wilson 100 inch (2.5 m)telescope during the period from 1996 June to 1999 August. The observinglist, based on the third edition (1991) of the Catalogue of Nearby Starsby Gliese and Jahreiss, at present has 416 entries. To date, about 20%of the objects have been observed under varied seeing conditions. Wehave detected faint visible companions to five of the stars: HD 144287,μ Her A, HR 7123, 16 Cyg A, and HD 190067. The companions of three ofthese-μ Her A, HR 7123, and HD 190067-are new discoveries. Based onobservations from Mount Wilson Observatory, operated by the Mount WilsonInstitute under an agreement with the Carnegie Institution ofWashington.
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Osservazione e dati astrometrici
| Costellazione: | Telescopio |
| Ascensione retta: | 18h56m53.20s |
| Declinazione: | -49°50'43.0" |
| Magnitudine apparente: | 8.562 |
| Distanza: | 257.069 parsec |
| Moto proprio RA: | -0.7 |
| Moto proprio Dec: | -7.9 |
| B-T magnitude: | 10.337 |
| V-T magnitude: | 8.709 |
Cataloghi e designazioni:
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