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HD 77725


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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.

Meridian observations made with the Carlsberg Automatic Meridian Circle at Brorfelde (Copenhagen University Observatory) 1981-1982
The 7-inch transit circle instrument with which the present position andmagnitude catalog for 1577 stars with visual magnitudes greater than11.0 was obtained had been equipped with a photoelectric moving slitmicrometer and a minicomputer to control the entire observationalprocess. Positions are reduced relative to the FK4 system for each nightover the whole meridian rather than the usual narrow zones. Thepositions of the FK4 stars used in the least squares solution are alsogiven in the catalog.

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Osservazione e dati astrometrici

Costellazione:Orsa Maggiore
Ascensione retta:09h07m41.04s
Declinazione:+64°59'06.0"
Magnitudine apparente:9.163
Distanza:116.959 parsec
Moto proprio RA:-1.6
Moto proprio Dec:-7.9
B-T magnitude:9.857
V-T magnitude:9.221

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 77725
TYCHO-2 2000TYC 4131-284-1
USNO-A2.0USNO-A2 1500-05139770
HIPHIP 44788

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