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TYC 607-541-1


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Precise positions, separations, and position angles of visual binaries
Astrometric observations of 212 large visual binaries are reported. Dataobtained with a GG 495 yellow filter on IIaD photographic plates usingthe Zen astrograph (aperture 20 cm and focal length 2077 mm) of theOsservatorio Astronomico di Brera during 1985-1986 are presented inextensive tables. The potential significance of these measurements forthe catalog being constructed for the Hipparcos space observatory isindicated.

A catalog of precise reference star positions for the astrometry network of the international comet P/Halley compaign
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...71..525D&db_key=AST

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Observation and Astrometry data

Constellation:Poissons
Right ascension:00h50m12.00s
Declination:+11°49'48.1"
Apparent magnitude:8.933
Distance:268.097 parsecs
Proper motion RA:41.4
Proper motion Dec:-49.1
B-T magnitude:10.13
V-T magnitude:9.032

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 607-541-1
USNO-A2.0USNO-A2 0975-00177287
HIPHIP 3912
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