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HD 21086


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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.

Stars with large proper motions in the Astrographic zones + 32° and + 33° (List III)
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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Perseo
Ascensione retta:03h25m13.37s
Declinazione:+32°22'46.0"
Magnitudine apparente:8.451
Distanza:126.743 parsec
Moto proprio RA:63.7
Moto proprio Dec:-4.2
B-T magnitude:9.11
V-T magnitude:8.506

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 21086
TYCHO-2 2000TYC 2345-616-1
USNO-A2.0USNO-A2 1200-01552525
HIPHIP 15937
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