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Reduction of CCD observations of visual binaries using the ``Tepui'' function as PSF
429 CCD measurements of relative positions and magnitude differences inV and R photometric bands for 165 visual double and multiple stars aregiven. CCD frames were taken at the 1.52 m Spanish telescope of theSpanish-German Center of Astronomy at Calar Alto (Almería,Spain). During the reduction process a ``Tepui" function was used as thePSF function.Tables 1 and 2 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/416/811
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Observation and Astrometry data
| Constellation: | Δράκων |
| Right ascension: | 17h32m14.61s |
| Declination: | +52°35'32.6" |
| Apparent magnitude: | 8.106 |
| Distance: | 87.719 parsecs |
| Proper motion RA: | 35.9 |
| Proper motion Dec: | -27.4 |
| B-T magnitude: | 8.587 |
| V-T magnitude: | 8.146 |
Catalogs and designations:
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