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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.
| Photoelectric observations of lunar occultations. X
Photoelectric occulation results for 461 events observed during 15months are reported. They include 77 reappearances, 4 determinations ofangular diameter, 38 analyses of double or multiple stars including twopreviously unknown bright stars, and 8 previously known bright double ormultiple stars.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Yengec |
| Sað Açýklýk: | 08h08m22.46s |
| Yükselim: | +14°51'12.9" |
| Görünürdeki Parlaklýk: | 8.274 |
| Uzaklýk: | 102.041 parsek |
| özdevim Sað Açýklýk: | -23.5 |
| özdevim Yükselim: | -12.3 |
| B-T magnitude: | 8.649 |
| V-T magnitude: | 8.305 |
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