Table 3: X-ray sources with bright optical counterparts that are known from other catalogues than the USNO or GSC. The last column yields the reference for the spectral type (FJL = FitzGerald et al. 1978, vdA = van den Ancker et al. 2000). The photometric data are taken from FJL, except for Thé 7 and 26 for which we adopt results from Eggen (1961).

#	cross-ID	V	B-V	Spect. type	Ref.
17	Thé 7	12.73	0.32
24	Thé 26	12.87	0.76	A1 IV	vdA
26	HD 317 857	10.30	0.29	B8 IV/B9 IV	FJL, vdA
27	HD 317 847	10.33	0.10	B2 V	FJL
38	FJL 7	12.62	0.28
39	FJL 9	10.84	0.14
42	FJL 11	15.10	1.06
44	HD 159 176	5.64	0.04	O7 V + O7 V	FJL
55	FJL 23	13.79	0.95	G5 V	vdA
56	FJL 24	11.35	0.18	B8 Vne/B7 V	FJL, vdA