Open Access
Table A.1
Relative positions of the two visual components from interferometric observations.
| Date | Angle | Separation | Reference |
|---|---|---|---|
| (Bess. yr.) | (degrees) | (arcsec) | |
| 1895.6750 | 77.40a | 0.340 | Hough (1899) |
| 1895.7010 | 79.40a | 0.300 | Hough (1899) |
| 1905.7010 | 149.9 | 0.280 | van Biesbroeck (1918) |
| 1906.6730 | 158.9 | 0.260 | van Biesbroeck (1918) |
| 1906.7530 | 162.3a | 0.250 | van Biesbroeck (1918) |
| 1911.5110 | 282.6a | 0.160 | van Biesbroeck (1918) |
| 1912.6570 | 346.5a | 0.150 | van Biesbroeck (1918) |
| 1914.4900 | 22.80 | 0.200 | van Biesbroeck (1927) |
| 1917.5200 | 55.60 | 0.310 | van Biesbroeck (1927) |
| 1917.5680 | 55.10 | 0.300 | van Biesbroeck (1927) |
| 1917.6090 | 58.30 | 0.290 | van Biesbroeck (1927) |
| 1917.6200 | 60.50 | 0.270 | van Biesbroeck (1927) |
| 1917.6230 | 54.80 | 0.270 | van Biesbroeck (1927) |
| 1918.2820 | 63.20 | 0.300 | van Biesbroeck (1927) |
| 1918.4190 | 70.20 | 0.310 | van Biesbroeck (1927) |
| 1918.4680 | 67.10 | 0.320 | van Biesbroeck (1927) |
| 1918.5010 | 68.30 | 0.320 | van Biesbroeck (1927) |
| 1918.5400 | 65.60 | 0.340 | van Biesbroeck (1927) |
| 1918.6400 | 61.00 | 0.290 | van Biesbroeck (1927) |
| 1919.6300 | 67.00 | 0.260 | van Biesbroeck (1927) |
| 1920.3300 | 68.60 | 0.410 | van Biesbroeck (1927) |
| 1920.4120 | 75.20 | 0.360 | van Biesbroeck (1927) |
| 1920.5660 | 79.20 | 0.320 | van Biesbroeck (1927) |
| 1920.6230 | 80.40 | 0.380 | van Biesbroeck (1927) |
| 1921.5600 | 77.20 | 0.340 | van Biesbroeck (1927) |
| 1921.6500 | 88.00 | 0.310 | van Biesbroeck (1927) |
| 1923.2400 | 87.00 | 0.370 | van Biesbroeck (1927) |
| 1923.4980 | 92.20 | 0.400 | van Biesbroeck (1927) |
| 1923.5470 | 89.70 | 0.370 | van Biesbroeck (1927) |
| 1923.6620 | 93.00 | 0.370 | van Biesbroeck (1927) |
| 1924.5030 | 95.40 | 0.320 | van Biesbroeck (1927) |
| 1924.6420 | 96.60 | 0.290 | van Biesbroeck (1927) |
| 1924.6480 | 96.10 | 0.310 | van Biesbroeck (1927) |
| 1925.3780 | 99.60 | 0.340 | van Biesbroeck (1927) |
| 1925.4630 | 102.8 | 0.320 | van Biesbroeck (1927) |
| 1948.6810 | 84.10 | 0.360 | Baize (1952) |
| 1948.7220 | 86.50 | 0.350 | Baize (1952) |
| 1948.7280 | 86.30 | 0.370 | Baize (1952) |
| 1948.7310 | 85.10 | 0.360 | Baize (1952) |
| 1953.7630 | 129.2 | 0.310 | Baize (1954) |
| 1953.7750 | 118.5 | 0.290 | Baize (1954) |
| 1953.7770 | 119.0 | 0.310 | Baize (1954) |
| 1954.7900 | 123.7 | 0.300 | Muller (1955) |
| 1954.7900 | 121.1 | 0.280 | Muller (1955) |
| 1954.8200 | 123.0 | 0.250 | Muller (1955) |
| 1956.7750 | 146.1 | 0.240 | Baize (1957) |
| 1956.7770 | 144.5 | 0.280 | Baize (1957) |
| 1956.8040 | 146.0 | 0.240 | Baize (1957) |
| 1956.8070 | 145.4 | 0.220 | Baize (1957) |
| 1957.6090 | 157.6 | 0.270 | van den Bos (1959) |
| 1957.6200 | 155.4 | 0.280 | van den Bos (1959) |
| 1957.6280 | 161.6 | 0.260 | van den Bos (1959) |
| 1960.6880 | 213.6 | 0.180 | Worley (1962) |
| 1960.7050 | 215.7 | 0.180 | Worley (1962) |
| 1960.7570 | 218.9 | 0.180 | Worley (1962) |
| 1960.8030 | 214.0 | 0.160 | Worley (1962) |
| 1962.6720 | 282.5 | 0.130 | van den Bos (1963) |
| 1966.7190 | 36.60 | 0.300 | Couteau (1967) |
| 1966.7460 | 33.10 | 0.260 | Couteau (1967) |
| 1966.7560 | 32.80 | 0.250 | Couteau (1967) |
| 1969.6510 | 59.20 | 0.350 | Couteau (1970) |
| 1969.6700 | 64.00 | 0.330 | Couteau (1970) |
| 1969.6980 | 60.50 | 0.360 | Couteau (1970) |
| 1972.4700 | 79.10 | 0.340 | van Biesbroeck (1974) |
| 1972.5410 | 81.40 | 0.320 | van Biesbroeck (1974) |
| 1974.6000 | 92.50 | 0.350 | Heintz (1975) |
| 1974.6400 | 91.40 | 0.350 | Holden (1975) |
| 1975.5620 | 95.60 | 0.290 | Holden (1976) |
| 1978.6200 | 112.1 | 0.320 | Heintz (1980) |
| 1987.5400 | 252.2 | 0.120 | Heintz (1990) |
| 1988.5600 | 289.9 | 0.100 | Heintz (1990) |
| 1989.4800 | 334.2 | 0.130 | Heintz (1990) |
| 1990.5250 | 12.10 | 0.156 | Couteau & Ling (1991) |
| 1990.5290 | 12.80 | 0.189 | Couteau & Ling (1991) |
| 1992.5330 | 41.60 | 0.240 | Couteau et al. (1993) |
| 1992.5330 | 41.90 | 0.245 | Couteau et al. (1993) |
| 1992.5530 | 41.60 | 0.237 | Couteau et al. (1993) |
| 1997.7500 | 79.80 | 0.370 | Heintz (1998) |
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