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HD 156771


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Photographic measurements of visual binaries
The results of 164 photographic measurements of 50 large and, generally,neglected visual double stars are presented. The measurements have beenmade at Brera-Merate Observatory during the years 1984-88 with Zenastrograph.

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Observation and Astrometry data

Constellation:Δράκων
Right ascension:17h16m27.21s
Declination:+54°32'39.3"
Apparent magnitude:9.275
Proper motion RA:6.7
Proper motion Dec:-1.5
B-T magnitude:9.745
V-T magnitude:9.314

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 156771
TYCHO-2 2000TYC 3891-1296-1
USNO-A2.0USNO-A2 1425-08736882
HIPHIP 84493

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