| Contents
 
 ImagesUpload your image
 DSS Images   Other Images
 
 
 
 Related articles
Submit a new article| 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 Not Available
 
 
 |  | A second list of wide visual binaries Not Available
 
 
 |  | Photographic measures of double stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1..357T&db_key=AST
 
 
 |  
 
 
 Related linksSubmit a new link
 
 
 Member of following groups: | 
 
 Observation and Astrometry data
| Constellation: | いて座 |  | Right ascension: | 20h00m52.97s |  | Declination: | -27°10'53.1" |  | Apparent magnitude: | 8.966 |  | Distance: | 184.843 parsecs |  | Proper motion RA: | 10.3 |  | Proper motion Dec: | -5.3 |  | B-T magnitude: | 9.571 |  | V-T magnitude: | 9.016 |  Catalogs and designations:
 
 
 |