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Measurements of binary stars obtained at Pic-du-Midi and at Nice
A total of 112 visual measurements of 82 close binaries observed with 2mtelescope at Pic-du-Midi are presented. In addition, 344 measurements of163 close binaries were observed with the 74-cm and 50-cm refractors atNice. All measurements were made by a micrometer with illuminated wires.
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Observation and Astrometry data
| Constellation: | Δράκων |
| Right ascension: | 15h00m55.13s |
| Declination: | +57°45'12.8" |
| Apparent magnitude: | 8.531 |
| Distance: | 609.756 parsecs |
| Proper motion RA: | -3.4 |
| Proper motion Dec: | 4.1 |
| B-T magnitude: | 9.846 |
| V-T magnitude: | 8.64 |
Catalogs and designations:
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