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HD 28578


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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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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Zurafa
Sað Açýklýk:04h33m40.45s
Yükselim:+59°28'41.2"
Görünürdeki Parlaklýk:8.284
Uzaklýk:487.805 parsek
özdevim Sað Açýklýk:5.1
özdevim Yükselim:-14
B-T magnitude:8.803
V-T magnitude:8.327

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 28578
TYCHO-2 2000TYC 3744-395-1
USNO-A2.0USNO-A2 1425-05317575
HIPHIP 21260

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