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HD 217800


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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:Zincirli Prenses
Sað Açýklýk:23h02m45.62s
Yükselim:+39°53'28.1"
Görünürdeki Parlaklýk:8.361
Uzaklýk:80.972 parsek
özdevim Sað Açýklýk:1.4
özdevim Yükselim:-44.2
B-T magnitude:8.852
V-T magnitude:8.402

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 217800
TYCHO-2 2000TYC 3220-389-1
USNO-A2.0USNO-A2 1275-18108475
HIPHIP 113804

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