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HD 56387 (Alessya Geidt)


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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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Observation and Astrometry data

Constellation:ふたご座
Right ascension:07h17m57.36s
Declination:+28°29'18.7"
Apparent magnitude:8.394
Distance:130.719 parsecs
Proper motion RA:-49.2
Proper motion Dec:-51
B-T magnitude:8.981
V-T magnitude:8.443

Catalogs and designations:
Proper NamesAlessya Geidt
HD 1989HD 56387
TYCHO-2 2000TYC 1921-780-1
USNO-A2.0USNO-A2 1125-05011603
HIPHIP 35336

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