Table 1: UBVRI photometric observations of MS Ser.

	number
epoch	of	<V>		U-B	B-V	V-R	V-I	phase
	nights
1991.5	8	8.20	0.10	0.66	1.04	0.74	1.44	0.34
1994.5	14	8.28	0.09	0.67	1.04	0.74	1.44	0.11
1995.5	5	8.30	0.20	0.66	1.03	0.72	1.41	0.31
1996.3	10	8.27	0.05	0.67	1.04	0.74	1.45	0.84
1997.4	9	8.30	0.12	0.66	1.04	0.73	1.45	0.38
2000.3	9	8.34	0.05	0.67	1.05	0.75	1.47	0.58
2001.5	6	8.33	0.13	0.66	1.05	0.75	1.46	0.58
2002.4	12	8.33	0.15	0.67	1.05	0.74	1.47	0.79