Table 1: A part of our measurements. It shows angular separations, positions angles, as well as instrumental V magnitude differences of visual double stars.
$\alpha_{2000}$ $\delta_{2000}$ WDS $\rho$ $\sigma_{\rho}$ $\theta$ $\sigma_{\theta}$ $\Delta V$ $\sigma_{\Delta V}$ Epoch No.

h m s $^\circ$ $^\prime$ $^{\prime\prime}$ $^{\prime\prime}$ $^\circ$ magnitudes year

1 52 10.1 +66 26 56 01522+6627 29.515 0.016 315.83 0.03 2.695 0.003 2003.60 15

2 42 21.3 +38 37 07 02424+3837 14.562 0.008 343.41 0.05 1.521 0.002 2004.91 16

2 55 47.1 +34 28 40 02558+3429 21.519 0.012 148.78 0.02 1.421 0.001 2004.91 16

3 02 16.8 +41 23 46 03023+4124 17.602 0.010 162.88 0.05 1.822 0.002 2004.91 16

3 22 51.8 +29 49 06 03229+2949 10.438 0.006 101.38 0.02 0.176 0.001 2004.91 16

**Table 1:** A part of our measurements. It shows angular separations, positions angles, as well as instrumental V magnitude differences of visual double stars.
$\alpha_{2000}$	$\delta_{2000}$	WDS	$\rho$	$\sigma_{\rho}$	$\theta$	$\sigma_{\theta}$	$\Delta V$	$\sigma_{\Delta V}$	Epoch	No.
h	m	s	$^\circ$	$^\prime$	$^{\prime\prime}$		$^{\prime\prime}$	$^\circ$	magnitudes	year
1	52	10.1	+66	26	56	01522+6627	29.515	0.016	315.83	0.03	2.695	0.003	2003.60	15
2	42	21.3	+38	37	07	02424+3837	14.562	0.008	343.41	0.05	1.521	0.002	2004.91	16
2	55	47.1	+34	28	40	02558+3429	21.519	0.012	148.78	0.02	1.421	0.001	2004.91	16
3	02	16.8	+41	23	46	03023+4124	17.602	0.010	162.88	0.05	1.822	0.002	2004.91	16
3	22	51.8	+29	49	06	03229+2949	10.438	0.006	101.38	0.02	0.176	0.001	2004.91	16

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