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HD 175054


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Speckle observations of visual and spectroscopic binaries. IV
This is the fourth paper of this series giving results of speckleobservations for 22 visual and 161 spectroscopic binaries. Theobservation was carried out by using the 212 cm telescope of San PedroMartir Observatory in Mexico on 7 nights from July 20 to July 26, 1991.We obtained fringes in power spectra of 19 visual and 11 spectroscopicbinaries (6 newly resolved ones) with angular separation larger than0.06 arcsec. We introduced a new ICCD TV camera in this observation, andwere able to achieve the diffraction-limit resolution of the 212 cmtelescope.

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Observation and Astrometry data

Constellation:Τηλεσκόπιον
Right ascension:18h56m34.38s
Declination:-54°34'01.6"
Apparent magnitude:7.786
Distance:781.25 parsecs
Proper motion RA:-9.7
Proper motion Dec:-9.8
B-T magnitude:7.843
V-T magnitude:7.791

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 175054
TYCHO-2 2000TYC 8763-857-1
USNO-A2.0USNO-A2 0300-35117481
HIPHIP 92981

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