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HD 169890


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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.

Precise equatorial coordinates for known or new components in a series of about 200 double and multiple systems
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1984A&AS...56..351S&db_key=AST

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Observation and Astrometry data

Constellation:Ophiucus
Right ascension:18h26m28.09s
Declination:+07°41'10.6"
Apparent magnitude:9.252
Proper motion RA:5.6
Proper motion Dec:0.9
B-T magnitude:9.988
V-T magnitude:9.313

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 169890
TYCHO-2 2000TYC 1023-979-1
USNO-A2.0USNO-A2 0975-11621469
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