**Table B.1:** V and $K_{\rm s}$ magnitudes, Strömgren indices, and photometric and spectroscopic indices of the strength of the H $\beta$ line. The derived interstellar reddening of ( $b\!-\!y)$ is given in Col. 10, and the absolute visual magnitude derived from the Strömgren photometry is given in Col. 11. Columns 12 and 13 give the absolute visual magnitude and its 1- $\sigma$ error derived from the Hipparcos parallax if available with an error less than 30%.
ID	V	$K_{\rm s}$	b-y	m₁	c₁	$\beta$ (phot)	Ref.^a	$\beta$ (UVES)	E(b-y)	M_V(phot)	M_V(par)	$\sigma$
BD $-13\hbox{$^\circ$ }3442$	10.288	9.018	0.308	0.050	0.385	2.622	4	8.820	0.022	3.67
CD $-30\hbox{$^\circ$ }18140$	9.949	8.655	0.323	0.047	0.344	2.606	1	8.755	0.019	3.88	4.19	0.46
CD $-35\hbox{$^\circ$ }14849$	10.568	9.293	0.321	0.040	0.293	2.603	1	8.751	0.011	4.47
CD $-42\hbox{$^\circ$ }14278$	10.216	8.770	0.361	0.040	0.229	2.576	1	8.587	0.015	4.94
G 11-44	11.091	9.740	0.335	0.061	0.248	2.588	1	8.660	-0.005	4.80
G 13-09	9.998	8.739	0.311	0.048	0.373	2.609	1	8.806	0.021	3.75	3.70	0.59
G 18-39	10.392	9.017	0.346	0.073	0.286	2.581	1	8.638	0.002	4.35
G 20-08	9.948	8.498	0.356	0.047	0.251	2.574	1	8.671	0.020	4.79	4.47	0.43
G 24-03	10.467	9.020	0.363	0.057	0.271	2.585	1	8.616	0.019	4.53
G 29-23	10.230	8.831	0.339	0.059	0.332	2.590	1	8.706	0.017	3.87
G 53-41	11.022	9.595	0.356	0.083	0.271	2.589	1	8.580	-0.003	4.54
G 64-12	11.459	10.208	0.307	0.043	0.337	2.617	4	8.860	0.020	4.37
G 64-37	11.144	9.923	0.300	0.054	0.333	2.623	4	8.861	0.007	4.31
G 66-30	11.028	9.789	0.305	0.072	0.358	2.634	1	8.962	0.016	4.20
G 126-62	9.478	8.075	0.330	0.063	0.327	2.588	1	8.739	0.012	4.00	4.06	0.37
G 186-26	10.829	9.590	0.306	0.041	0.339	2.608	1	8.844	0.019	4.31	5.12	0.50
HD 106038	10.179	8.761	0.342	0.092	0.264	2.583	1	8.595	-0.017	4.69	4.99	0.36
HD 108177	9.671	8.354	0.330	0.059	0.287	2.594	1	8.665	-0.002	4.36	4.87	0.26
HD 110621	9.906	8.566	0.337	0.067	0.324	2.595	1	8.679	0.007	3.89	4.12	0.46
HD 140283	7.213	5.588	0.380	0.033	0.284	2.564	1	8.434	0.013	3.83	3.36	0.12
HD 160617	8.733	7.311	0.347	0.051	0.331	2.584	1	8.594	0.010	3.51	3.37	0.31
HD 179626	9.210	7.680	0.373	0.095	0.293	2.588	1	8.551	0.005	4.29	3.57	0.39
HD 181743	9.687	8.274	0.351	0.052	0.224	2.582	1	8.567	-0.001	4.97	4.95	0.34
HD 188031	10.148	8.857	0.328	0.058	0.310	2.592	1	8.730	0.009	4.19
HD 193901	8.660	7.144	0.383	0.099	0.221	2.568	1	8.443	-0.006	5.16	5.46	0.12
HD 194598	8.354	6.982	0.344	0.091	0.269	2.588	1	8.624	-0.011	4.63	4.62	0.15
HD 215801	10.044	8.642	0.334	0.049	0.330	2.572	1	8.589	-0.001	3.47
LP 815-43	10.912	9.650	0.304	0.048	0.382	2.623	1	8.913	0.031	4.18
CD $-24\hbox {$^\circ $ }17504$	12.124	10.807	0.322	0.043	0.283	2.609	4	8.770	0.010	4.60
CD $-71\hbox {$^\circ $ }1234$	10.44	9.114					5	8.790	0.019	3.67
CS 22943-095	11.762	10.469	0.324	0.045	0.335	2.619	3	8.804	0.025	4.17
G 04-37	11.426	9.974	0.363	0.031	0.306	2.614	4	8.759	0.053	4.43
G 48-29	10.467	9.264	0.298	0.057	0.351	2.620	4	8.911	0.013	4.29
G 59-27	10.892	9.560	0.321	0.058	0.301	2.595	1	8.750	0.004	4.32
G 126-52	10.996	9.719	0.322	0.045	0.347	2.608	2	8.846	0.031	4.20
G 166-54	11.005	9.731	0.324	0.043	0.322	2.619	4	8.842	0.027	4.42
HD 84937	8.332	7.062	0.303	0.056	0.354	2.613	1	8.821	0.009	3.95	3.77	0.19
HD 338529	9.370	8.144	0.308	0.045	0.366	2.600	1	8.832	0.023	3.98	3.48	0.46
LP 635-14	11.362	9.997	0.347	0.026	0.366	2.611	4	8.820	0.060	4.02
LP 651-4	12.053	10.842	0.321	0.023	0.340	2.615	4	8.813	0.033	4.27

^a References of V, b-y, m₁, c₁ and $\beta$ (phot): (1) Schuster & Nissen (1988); (2) Schuster et al. (1993); (3) Schuster et al. (1996); (4) Schuster et al. (2006); (5) Ryan (1989). For all stars, $K_{\rm s}$ has been taken from the 2MASS catalogue (Skrutski et al. 2006).

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