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HD 7114


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CCD astrometry and instrumental {DELTA}V photometry of wide visual double stars. IV. Differential measurements of northern pairs.
We present relative positions and instrumental visual magnitudedifferences ({DELTA}V) of 101 northern wide double star components. Themean accuracy of the magnitude differences is 0.01 magnitudes, of theangular separation 0.04 arcseconds, and of position angle 0.13 degrees.Most of the programme pairs are targets of the HIPPARCOS mission andthey have been often observed during the last 150 years.

A preliminary compilation of DS-programme star positions
A catalog is presented of the double-star-program (DS-program) starpositions, listing right ascensions for 930 DSs and declinations for1225 DSs of the program. The positions were compiled from the observedvalues obtained between 1980 and 1987 with the meridian circles of sixUSSR observatories (the Moscow, Kazan', Kiev, Khar'kov, Odessa, andTashkent Observatories) and the Belgrade Observatory. The measurementsand the treatment of the observational material were performed using therelative method, and the FK-4 system stars were used as reference stars.

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Observation and Astrometry data

Constellation:Cassiopeia
Right ascension:01h12m18.98s
Declination:+51°31'30.1"
Apparent magnitude:8.667
Distance:149.701 parsecs
Proper motion RA:13.3
Proper motion Dec:-7.4
B-T magnitude:8.906
V-T magnitude:8.687

Catalogs and designations:
Proper Names
HD 1989HD 7114
TYCHO-2 2000TYC 3276-1434-1
USNO-A2.0USNO-A2 1350-01177307
HIPHIP 5630

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