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HD 45056


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CCD astrometry and components instrumental magnitude difference of 432 Hipparcos wide visual double stars
Context: We measured the angular separations, position angles, ΔV, Δ y and Δ I of wide visual double stars during the period2003-2005. At least one component of the double stars in our sample hasan entry in the Hipparcos catalogue. Aims: Our measurements are acontribution to the study of the nature of these double stars. Methods: The northern double stars of the project were observed with the1.2 m telescope of the Kryonerion observatory and the southern with the1.0 m SAAO. We performed multiple-exposure CCD imaging of our targetsand used the standard procedure of data reduction and astrometric CCDcalibrations. Results: We present measurements of 213 northern and 219southern wide binaries.Based on observations made at Kryonerion Observatory of the NationalObservatory of Athens, Greece, and the South African AstronomicalObservatory. Full Table 1 and Tables 2, 3 are only available inelectronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr(130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/472/1055

A second list of wide visual binaries
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A second list of wide visual binaries
Not Available

An automatic procedure for a determination of the effective temperature and gravity - Application to 100 O-type stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980A&AS...41..299M&db_key=AST

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Observation and Astrometry data

Constellation:とも座
Right ascension:06h22m55.17s
Declination:-45°37'44.0"
Apparent magnitude:6.735
Distance:292.398 parsecs
Proper motion RA:-15.7
Proper motion Dec:16.9
B-T magnitude:8.18
V-T magnitude:6.855

Catalogs and designations:
Proper Names
HD 1989HD 45056
TYCHO-2 2000TYC 8103-1536-1
USNO-A2.0USNO-A2 0375-02490965
HIPHIP 30339
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