**Table A.6:** Times of primary (P) and secondary (S) minima for VZ Hya. O-C values are calculated for the ephemeris given in Eq. (5) adopting 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	Type	Observing	Reference
- 2 400 000	publ.	adopt.	days		method
21 925.8246	0.0008	0.0011	0.0018	P	PG	O32 (T₀)
26 674.3410	0.0010	0.0120	-0.0127	P	PG	G53 (T₀)
27 856.412		0.0063	0.0081	P	V	L49
29 604.794		0.0063	0.0014	P	V	W46
29 700.634		0.0063	-0.0006	P	V	-
30 034.626		0.0063	-0.0031	P	V	-
39 926.673		0.0063	-0.0027	P	V	BA74
40 254.8602	0.0005	0.0007	-0.0014	P	PE	W70
40 998.362		0.0028	-0.0004	P	PE	PS75
41 033.212		0.0028	-0.0020	P	PE	-
42 354.668		0.0063	-0.0026	P	V	B18(1974)
42 848.401		0.0063	-0.0007	P	V	B27(1976)
43 577.372		0.0063	-0.0090	P	V	B37(1978)
44 236.6532		0.0028	-0.0040	P	PE	W82
47 971.5876*	0.0003		0.0003	P	PE	SC07
48 267.8259	0.0001	0.0001	-0.0001	P	PE	This paper
48 270.7303	0.0001	0.0001	0.0000	P	PE	-
48 273.6346	0.0001	0.0001	0.0001	P	PE	-
51 253.4340		0.0063	-0.0125	P	V	BAV122(1999)
51 256.3520		0.0063	0.0012	P	V	-
52 702.6936*	0.0001		0.0012	P	PE	SC07
27 840.437		0.0063	0.0067	S	V	L49
29 681.751		0.0063	-0.0056	S	V	W46
29 748.556		0.0063	0.0005	S	V	-
30 015.742		0.0063	-0.0091	S	V	-
40 305.6848	0.0005	0.0015	-0.0020	S	PE	W70
40 654.201		0.0028	-0.0019	S	PE	PS75
40 686.154		0.0028	0.0038	S	PE	-
41 743.305		0.0063	-0.0104	S	V	B8(1973)
48 684.5934	0.0002	0.0006	0.0004	S	PE	This paper

References are: B = BBSAG Bulletin, followed by volume number and year of publication; BA74 = Baldwin (1974); BAV = B.A.V. Mitt., followed by volume number and year of publication; G53 = epoch given by Gaposchkin (1953); L49 = Lause (1949); O32 = epoch given by O'Connell (1932); PS75 = Padalia & Srivastava (1975); SC07 = Smith & Caton (2007); W46 = Wood (1946); W70 = redetermined from B and V data by Walker (1970); W82 = Wolf et al. (1982).

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