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HD 45397


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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.

Visual measures of 193 double and multiple stars
Micrometer measurements of 174 double stars obtained with 26 1/2-in. and10-in. refractors are presented, along with interferometric measurementsof 19 double stars performed using 20-in. and 36-in. reflectors. Theresults reported include star coordinates, position angles, separations,probable errors, orbital residuals, and identifications of wide doubleswith separations of up to 2 arcmin.

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Сазвежђа:Једнорог
Ректацензија:06h27m09.18s
Deклинација:+00°08'06.1"
Apparent магнитуда:7.799
Даљина:1234.568 parsecs
Proper motion RA:-8.5
Proper motion Dec:-10.2
B-T magnitude:7.752
V-T magnitude:7.796

Каталог и designations:
Proper имена
HD 1989HD 45397
TYCHO-2 2000TYC 133-319-1
USNO-A2.0USNO-A2 0900-02963125
HIPHIP 30709

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