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Table 3

Ephemerides used to phase the interferometric, spectroscopic, and photometric data.

Data reference Phase shift MJD0 Period (days) Period drift (s/year)

Radial velocities
Wallerstein et al. (1992) φ + 0.171
Present work φ + 0.034 50 373.793 9.0827

Interferometry
Present work 50 373.793 9.0827

Photometry
Berdnikov (2008) (1) 50 646.541 9.0897
Berdnikov (2008) (2) 51 609.425 9.0804
Berdnikov (2008) (3) 52 353.321 9.0669
Feast et al. (2008) 46 800.743 9.0789
Walraven et al. (1964) 37 913.807 9.0833
ESA (1997) 47 482.679 9.0888 65.895

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