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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.
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Observation and Astrometry data
| Constellation: | Stier |
| Right ascension: | 04h01m45.13s |
| Declination: | +21°39'33.7" |
| Apparent magnitude: | 8.817 |
| Distance: | 355.872 parsecs |
| Proper motion RA: | 36.7 |
| Proper motion Dec: | -17.1 |
| B-T magnitude: | 10.209 |
| V-T magnitude: | 8.932 |
Catalogs and designations:
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