**Table A.7:** Times of *primary* minima for WZ Oph. O-C values are calculated for the ephemeris given in Eq. (6) assuming a circular orbit. Observing methods are: PG photographic; V visual; PE photoelectric or CCD. Times marked with an asterisk were published after we completed the ephemeris calculations; including them makes no significant changes.
HJD	rms	rms	O-C	Observing	Reference
- 2 400 000	publ.	adopt.	days	method
14 766.779		0.0340	-0.0211	PG	G38
16 402.534		0.0340	-0.0172	PG	-
16 678.62		0.0340	-0.0427	PG	-
16 975.67		0.0340	-0.0217	PG	-
17 707.813		0.0340	0.0076	PG	-
17 728.754		0.0340	0.0311	PG	-
18 523.56		0.0340	-0.0292	PG	-
19 531.77		0.0340	-0.0443	PG	-
20 778.51		0.0340	0.0106	PG	-
22 531.385		0.0110	-0.0037	V	L21
22 836.74		0.0340	-0.0447	PG	G38
22 941.379		0.0110	0.0066	V	L21
22 962.303		0.0110	0.0131	V	-
23 284.431		0.0110	0.0111	V	L26
23 535.440		0.0110	0.0097	V	-
23 581.451		0.0110	0.0021	V	-
23 648.393		0.0110	0.0080	V	-
24 355.405		0.0110	0.0073	V	-
24 702.626		0.0340	-0.0027	PG	G38
24 744.520		0.0340	0.0562	PG	-
25 363.601		0.0340	-0.0218	PG	-
25 384.477		0.0340	-0.0634	PG	-
25 384.563		0.0340	0.0226	PG	-
25 388.729		0.0110	0.0051	V	M29
27 250.410	0.004	0.0180	0.0256	V	D77
27 639.444		0.0110	-0.0065	V	L36
27 660.376		0.0110	0.0079	V	-
27 890.448		0.0110	-0.0129	V	-
27 961.570		0.0110	-0.0106	V	-
28 003.411		0.0110	-0.0046	V	-
28 455.228		0.0110	-0.0064	V	L38
28 555.627		0.0110	-0.0115	V	-
28 664.418		0.0110	0.0083	V	-
28 689.498		0.0110	-0.0127	V	-
28 819.172		0.0110	-0.0274	V	-
28 844.310		0.0110	0.0095	V	-
35 650.8670	0.0010	0.0028	0.0009	PE	P65
40 859.331		0.0110	-0.0011	V	O121 (1970)
41 135.427		0.0110	-0.0165	V	O126 (1971)
46 243.508		0.0110	0.0027	V	B77 (1985)
47 381.420		0.0110	0.0008	V	BR30 (1992)
47 724.471		0.0110	0.0043	V	BAV56 (1989)
48 004.7536*	0.0002		-0.0081	PE	SC07
48 042.420		0.0110	0.0068	V	B95 (1990)
48 088.453		0.0110	0.0212	V	B96 (1990)
48 372.9097	0.0004	0.0011	-0.0006	PE	This paper
48 452.3967		0.0003	-0.0002	PE	BAA91 (1997)
48 795.445	0.010	0.0280	0.0005	PE	B102 (1992)
48 883.3011	0.0008	0.0022	0.0030	PE	B103 (1993)
50 535.7849	0.0003	0.0008	0.0016	PE	This paper
52 054.396		0.0110	-0.0003	V	BAV143 (2001)
52 100.411		0.0110	-0.0039	V	BAV154 (2002)
53 476.7886*	0.0001		0.0000	PE	SC07

References are: B = BBSAG Bulletin, followed by volume number and year of publication; BAA = BAA VSS Circ., followed by volume number and year of publication; BAV = B.A.V. Mitt., followed by volume number and year of publication; BR = Brno Contr., followed by volume number and year of publication; G38 = Gaposchkin (1938); D77 = Dworak (1977); H01 = Hipparcos 2001, unpublished; H06 = Hübscher et al. (2006); L21 = Leiner (1921); L26 = Leiner (1926); L36 = Lause (1936); L38 = Lause (1938); M29 = McLaughlin (1929; N05 = Nagai (2005); O = Orion (Diethelm & Locker 1970b,1971c), followed by volume number and year of publication; P36 = Prager (1936); P65 = Popper (1965); determined by the present authors; SC07 = Smith & Caton (2007).

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