THE CLOSE BINARY V757 CENTAURI

THE CLOSE BINARY V757 CENTAURI

The W UMa system V757 Cen has been observed photoelectrically in the UBV system at Bosque Alegre and at El Leoncito Observatories. Full light curves were constructed from 1135 V, 1104 B, and 1104 U individual observations. An improved ephemeris based on about 12,000 cycles is given. A first classica...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific 1982-02, Vol.94 (557), p.189-194
Hauptverfasser: CERRUTI, MIGUEL A., SISTERÓ, ROBERTO F.
Format: Artikel
Sprache:eng
Schlagworte:
Binary systems
Comparison stars
Eclipses
Ephemerides
Light curves
Mathematical minima
Observatories
Spectroscopy
Stellar classification
Variable stars
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Zusammenfassung:The W UMa system V757 Cen has been observed photoelectrically in the UBV system at Bosque Alegre and at El Leoncito Observatories. Full light curves were constructed from 1135 V, 1104 B, and 1104 U individual observations. An improved ephemeris based on about 12,000 cycles is given. A first classical solution for partial eclipses, determined with complementary spectroscopic data, suggests the system to be a contact W UMa star consisting of a larger component of spectral type G1-G2 and an F9-G0 companion.
ISSN:0004-6280
1538-3873
DOI:10.1086/130962