**Table 2:** The sample of cool WDs from the GSC-II survey: astrometric parameters.
ID	RA	Dec	$\mu_{\alpha}\cos\delta$	$\mu_{\delta}$	Epoch
	(J2000)	(J2000)	mas yr^-1	mas yr^-1
GSC2U J003209.6-025402	00 32 09.57	-02 54 02.6	$630.4\pm4.4^{a}$	$-149.5\pm4.3^a$	1993.85
GSC2U J003536.0+015314	00 35 35.97	+01 53 14.0	$-139.0\pm1.5$	$-361.2\pm1.3$	1991.76
GSC2U J010456.6+212002	01 04 56.62	+21 20 02.0	$-208.4\pm2.9$	$-434.1\pm2.8$	1991.63
GSC2U J010458.1+212021	01 04 58.10	+21 20 21.0	$-205.7\pm2.8$	$-437.4\pm2.5$	1991.63
GSC2U J025936.9+172533	02 59 35.86	+17 25 33.0	$-271.4\pm8.5^{a}$	$-93.5\pm7.8^a$	1991.79
GSC2U J030339.2+140805	03 03 39.15	+14 08 05.0	$50.8\pm1.9^{b}$	$-477.4\pm35.5^b$	1991.79
GSC2U J031000.4+163022	03 10 00.43	+16 30 22.0	$208.5\pm4.1^{a}$	$-193.3\pm4.4^a$	1991.79
GSC2U J071858.8+551406	07 18 58.80	+55 14 06.0	$161.7\pm3.9$	$-191.6\pm7.8$	1989.93
GSC2U J113524.7+271741	11 35 24.72	+27 17 41.4	$-349.4\pm4.0$	$-62.5\pm3.8$	1995.31
GSC2U J114625.7-013635	11 46 25.68	-01 36 34.8	$351.8\pm0.6$	$-433.7\pm1.4$	1995.00
GSC2U J122810.3+415003	12 28 10.32	+41 50 03.5	$-262.9\pm4.5$	$64.8\pm5.2$	1988.22
GSC2U J123752.6+415622	12 37 52.56	+41 56 22.4	$-337.2\pm2.8$	$340.6\pm0.7$	1988.22
GSC2U J123915.4+452520	12 39 15.36	+45 25 20.4	$-637.1\pm1.7$	$-530.5\pm3.1$	1988.22
GSC2U J124212.6+295801	12 42 12.57	+29 58 00.6	$-515.1\pm4.2$	$-350.9\pm19.8$	1990,08
GSC2U J125313.0+343712	12 53 12.96	+34 37 11.7	$-303.9\pm7.6$	$161.2\pm2.1$	1990.21
GSC2U J125509.6+465520	12 55 09.60	+46 55 19.9	$-1087.9\pm2.7$	$-84.2\pm3.8$	1988.22
GSC2U J125946.8+273404	12 59 46.80	+27 34 03.6	$-311.5\pm 10.4$	$81.3\pm8.6$	1993.29
GSC2U J131147.2+292348	13 11 47.28	+29 23 47.4	$-384.9\pm 2.5^{c}$	$320.3\pm4.2^c$	1995.23
GSC2U J131749.0+215715	13 17 48.98	+21 57 14.7	$-26.9\pm 1.9$	$-274.8\pm1.6$	1996.30
GSC2U J132325.2+303615	13 23 25.20	+30 36 15.3	$-101.6\pm2.4$	$-405.2\pm5.3$	1995.31
GSC2U J132857.4+445034	13 28 57.36	+44 50 34.5	$106.4\pm2.7$	$-223.6\pm3.1$	1994.42
GSC2U J132909.6+310947	13 29 09.60	+31 09 47.2	$-244.8\pm3.7$	$89.1\pm0.7$	1995.31
GSC2U J133059.8+302955	13 30 59.76	+30 29 55.1	$-471.9\pm2.1$	$-107.5\pm1.8$	1995.31
GSC2U J133250.9+011707	13 32 50.88	+01 17 07.2	$13.4\pm1.6$	$-274.6\pm2.1$	1996.23
GSC2U J133360.0+001654	13 33 60.00	+00 16 54.3	$-328.9\pm2.0$	$206.1\pm2.0$	1996.22
GSC2U J133616.1+001733	13 36 16.08	+00 17 33.0	$-280.0\pm0.9$	$-139.8\pm1.3$	1996.23
GSC2U J133620.4+364829	13 36 20.40	+36 48 29.2	$-248.4\pm5.3$	$222.5\pm4.1$	1996.22
GSC2U J134043.4+020348	13 40 43.44	+02 03 48.2	$-531.3\pm2.3$	$31.5\pm0.9$	1996.23
GSC2U J134107.9+415004	13 41 07.92	+41 50 04.5	$-217.0\pm1.4$	$-188.7\pm3.3$	1996.22
GSC2U J135118.4+425317	13 51 18.35	+42 53 16.8	$213.7\pm2.8$	$-253.8\pm3.8$	1994.42
GSC2U J155611.5+115351	15 56 11.52	+11 53 51.4	$-193.1\pm3.7$	$26.0\pm6.0$	1994.42
GSC2U J155721.8+141212	15 57 21.75	+14 12 11.9	$-204.7\pm1.4$	$-244.2\pm4.8$	1994.44
GSC2U J162242.0+670112	16 22 42.00	+67 01 12.3	$-76.2\pm3.6$	$181.5\pm2.8$	1994.42
GSC2U J165237.4-011354	16 52 37.44	-01 13 54.5	$131.3\pm1.7$	$-359.1\pm0.9$	1990.40
GSC2U J222233.1+122140	22 22 33.12	+12 21 40.3	$706.3\pm2.3$	$185.5\pm2.4$	1987.72
GSC2U J224011.2-030316	22 40 11.25	-03 03 16.0	$-202.1\pm5.3$	$-217.7\pm2.3$	1995.59
GSC2U J231518.5-020942	23 15 18.48	-02 09 42.0	$578.4\pm2.1$	$169.5\pm1.3$	1990.66
GSC2U J232115.4+010214	23 21 15.36	+01 02 14.4	$-104.6\pm2.4$	$-244.8\pm1.9$	1990.66
GSC2U J232116.8+010227	23 21 15.84	+01 02 27.0	$-98.0\pm6.6$	$-242.5\pm3.3$	1990.66
GSC2U J233539.1+123048	23 35 39.12	+12 30 48.2	$-111.3\pm1.5$	$-134.1\pm1.9$	1995.82
GSC2U J233707.4+003240	23 37 07.44	+00 32 40.3	$299.7\pm1.9$	$158.5\pm1.6$	1990.74

^a Proper motions computed from POSS-I, SERC-J, SERC-ER, and SERC-I positions $(\alpha, \delta)$ extracted from the GSC-II database.
^b Proper motions computed from POSS-II positions $(\alpha, \delta)$ extracted from the GSC-II database $(\Delta T=6.0$ years).
^c The value ( $\mu_{\delta}=0.286''~$ yr^-1) reported in Carollo et al. (2002) was affected by a systematic error. We report here the updated value.

Source LaTeX | All tables | In the text