Open Access

Table A.2

Relative positions of the two visual components from interferometric observations.

Date Angle Separation Reference
(Bess. yr.) (degrees) (arcsec)
1979.7420 125.4 0.300 Tokovinin (1980)
1984.7780 177.2 0.214 Tokovinin (1985)
1991.2500 26.00 0.221 ESA (1997)a
1995.7593 65.70 0.343 Hartkopf et al. (1997)
1996.4199 69.60 0.361 Hartkopf et al. (2000)
1996.6903 72.10 0.355 Hartkopf et al. (2000)
1997.5203 78.20 0.355 Horch et al. (1999)
1997.5231 75.50 0.371 Horch et al. (1999)
1999.8824 88.40 0.371 Horch et al. (2002)
2001.4991 98.00 0.354 Mason et al. (2011)
2003.4840 108.6 0.340 Mason et al. (2004)
2003.5980 110.6 0.310 Mason et al. (2004)
2003.6500 110.2 0.340 Mason et al. (2004)
2003.7670 111.1 0.300 Mason et al. (2004)
2006.5615 132.8 0.286 Hartkopf & Mason (2009)

Notes. (a) HIPPARCOS measure.

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