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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.

Radial-velocity measurements. V - Ground support of the HIPPARCOS satellite observation program
The paper presents data on 1070 radial velocity measurements of starsdistributed in 39 fields measuring 4 deg x 4 deg. The PPO series ofFehrenbach et al. (1987) and Duflot et al. (1990) is continued using theFehrenbach objective prism method.

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Dades d'Observació i Astrometria

Constel·lació:Cassiopeia
Ascensió Recta:00h48m02.01s
Declinació:+52°16'31.0"
Magnitud Aparent:8.481
Distancia:259.74 parsecs
Moviment propi RA:-9.6
Moviment propi Dec:0
B-T magnitude:8.86
V-T magnitude:8.513

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 4535
TYCHO-2 2000TYC 3274-378-1
USNO-A2.0USNO-A2 1350-00813235
HIPHIP 3742

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