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HD 139907


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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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Observation and Astrometry data

Constellation:Bootes
Right ascension:15h39m03.19s
Declination:+43°51'59.4"
Apparent magnitude:8.668
Distance:79.177 parsecs
Proper motion RA:-104.5
Proper motion Dec:31.4
B-T magnitude:9.458
V-T magnitude:8.734

Catalogs and designations:
Proper Names
HD 1989HD 139907
TYCHO-2 2000TYC 3059-701-1
USNO-A2.0USNO-A2 1275-08714571
HIPHIP 76641
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