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A search for more Cepheid binaries
New UBV(RI)c photometric and photoelectric radial velocity observationsof six short-period Galactic Cepheids are presented. The data are usedto search for binaries among these stars. AT Pup is revealed as a newspectroscopic binary system. Its companion is likely to be amain-sequence star of spectral type B5 or later. T Vel may be anotherspectroscopic binary with a red companion, and there is some evidencefor a blue photometric companion to GI Car.
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Observation and Astrometry data
| Constellation: | Carina |
| Right ascension: | 11h15m16.09s |
| Declination: | -58°10'52.9" |
| Apparent magnitude: | 7.962 |
| Distance: | 235.849 parsecs |
| Proper motion RA: | -39.1 |
| Proper motion Dec: | -1 |
| B-T magnitude: | 9.215 |
| V-T magnitude: | 8.066 |
Catalogs and designations:
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