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UBV Light Variation and Orbital Elements of W-Gruis
In each of the UBV band-passes 2440 observations define for the firsttime the photoelectric light variation of the binary system W Gru. Aconsistent set of elements is derived in the framework of Russell'sclassic and Napier's synthesis models. Absolute dimensions are derived.The system seems to be a well-detached binary consisting of two normal,not interacting, F5 IV components.
| Standard magnitudes in the E regions.
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Observation and Astrometry data
| Constellation: | Γερανός |
| Right ascension: | 22h43m58.90s |
| Declination: | -44°06'28.9" |
| Apparent magnitude: | 9.235 |
| Proper motion RA: | 28.4 |
| Proper motion Dec: | 2.5 |
| B-T magnitude: | 9.705 |
| V-T magnitude: | 9.274 |
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