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Photometric study of the binary system S Equ The Algol-type system S-Equ is observed yielding UBV photoelectric datawhich are examined in terms of the orbit eccentricity of the system. Theobservational data are found to contradict the orbit eccentricity, whilethe mass ratio confirms previous calculations. It is suggested that SEqu is a triple system based on the hypothesis that a third light sourcecomparable to the cooler component can account for the total flux of thesystem.
| Lettera alla Direzione: Nuova variabile in Equuleus Not Available
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Observation and Astrometry data
Constellation: | Füllen |
Right ascension: | 20h57m31.94s |
Declination: | +05°43'52.8" |
Apparent magnitude: | 9.57 |
Proper motion RA: | 7.2 |
Proper motion Dec: | -26.8 |
B-T magnitude: | 9.973 |
V-T magnitude: | 9.604 |
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