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Speckle Observations of Binary Stars with the WIYN Telescope. III. A Partial Survey of A, F, and G Dwarfs
Two hundred thirty nearby main-sequence stars with spectral types in therange of A to G have been observed by way of speckle interferometryusing the WIYN 3.5 m telescope at Kitt Peak, Arizona. The stars had noprevious mention of duplicity in the literature. Of those observed, 14showed clear evidence of a companion, and 63 were classified assuspected nonsingle based on a power spectrum analysis. The remainingstars discussed show no evidence of duplicity to the limit of thedetection system in high-quality observations. The WIYN Observatory is ajoint facility of the University of Wisconsin-Madison, IndianaUniversity, Yale University, and the National Optical AstronomyObservatory.
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| Сазвежђа: | Велики медвед |
| Ректацензија: | 10h38m36.80s |
| Deклинација: | +40°19'19.6" |
| Apparent магнитуда: | 8.408 |
| Даљина: | 63.613 parsecs |
| Proper motion RA: | -85 |
| Proper motion Dec: | -4.3 |
| B-T magnitude: | 9.145 |
| V-T magnitude: | 8.469 |
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