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HD 66801


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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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观测天体数据

星座:小犬座
右阿森松:08h05m24.43s
赤纬:+05°49'38.9"
视星:7.482
距离:735.294 天文距离
右阿森松适当运动:-17
赤纬适当运动:-9.3
B-T magnitude:7.454
V-T magnitude:7.48

目录:
适当名称
HD 1989HD 66801
TYCHO-2 2000TYC 206-138-1
USNO-A2.0USNO-A2 0900-05705260
HIPHIP 39591

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