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Observation Summary for Variable Star SU TAU

Total observations:	11,976		Minimum magnitude:	17.970	Maximum magnitude:	9.093
First observation:	JD 2438000.400000	\	1 Dec 1962 21:36:00.000000 UT	Latest observation:	JD 2460947.602000	\	29 Sep 2025 02:26:52.800000 UT

Observation Method	Number of Observations
Visual	11,523
CCD	377
DSLR	22
CMOS	54

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Summary by Year and Month

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Aug	Sep	Oct	Nov	Dec
2025	299	181	28	47	34	0	0	0	9	0	0	0
2024	155	39	31	21	14	0	0	6	5	10	11	18
2023	230	32	36	17	88	0	0	5	10	18	12	12
2022	229	47	36	56	21	0	0	9	5	11	19	25
2021	162	16	31	31	31	6	0	2	4	7	14	20
2020	273	35	58	89	43	1	0	1	10	7	14	15
2019	128	26	33	20	3	0	0	0	7	7	11	21
2018	123	24	36	15	9	0	0	3	5	8	10	13
2017	110	27	11	31	8	0	0	2	6	3	9	13
2016	134	19	33	27	11	0	0	1	4	5	14	20
2015	119	21	25	24	15	0	0	1	12	1	5	15
2014	154	32	26	36	15	0	0	2	6	6	8	23
2013	131	21	15	15	26	1	0	2	7	7	9	28
2012	195	40	23	53	17	0	0	5	9	6	15	27
2011	166	28	24	30	24	0	0	0	10	9	18	23
2010	194	31	26	44	33	0	0	4	6	13	25	12
2009	212	40	22	50	34	0	0	5	7	10	21	23
2008	207	36	54	34	14	1	0	1	10	14	20	23
2007	266	37	31	47	51	4	0	2	7	6	30	51
2006	161	24	22	21	21	2	0	3	5	11	31	21
2005	153	36	21	22	17	0	0	3	5	2	22	25
2004	143	36	28	24	16	0	0	1	6	4	8	20
2003	314	54	67	86	52	1	0	1	7	9	13	24
2002	207	36	42	33	46	1	0	1	6	9	22	11
2001	219	48	43	34	23	3	0	1	3	10	24	30
2000	367	54	85	69	44	0	0	2	8	19	42	44
1999	340	60	58	62	28	0	0	4	5	24	39	60
1998	262	55	36	25	13	0	0	4	12	24	38	55
1997	189	27	26	34	15	0	0	2	16	30	21	18
1996	146	14	37	11	13	0	0	1	9	14	27	20
1995	274	67	49	68	20	0	0	5	9	16	26	14
1994	227	49	37	34	15	0	0	3	9	19	19	42
1993	231	34	22	75	14	0	1	5	8	14	20	38
1992	197	40	35	30	13	0	0	1	3	11	26	38
1991	215	49	39	31	20	1	0	2	8	7	26	32
1990	212	32	36	47	19	0	0	0	3	15	31	29
1989	250	56	49	56	17	0	0	1	2	8	42	19
1988	276	44	63	37	33	1	0	5	5	12	36	40
1987	296	48	31	64	28	4	0	9	15	22	41	34
1986	244	47	36	41	21	0	0	0	4	13	28	54
1985	187	29	43	44	11	0	0	2	3	13	19	23
1984	159	39	24	15	11	0	0	1	4	13	19	33
1983	208	28	47	42	20	2	0	2	5	16	21	25
1982	171	24	27	42	13	0	0	2	7	12	19	25
1981	171	33	35	17	11	0	0	1	13	18	28	15
1980	184	21	13	24	25	0	0	3	11	29	30	28
1979	140	27	24	15	4	0	0	5	13	14	26	12
1978	126	26	13	22	8	1	0	1	6	16	18	15
1977	63	5	11	11	10	0	0	0	4	5	7	10
1976	157	25	18	40	27	1	0	5	1	4	19	17
1975	234	54	22	30	20	2	0	5	13	18	35	35
1974	259	40	33	21	17	0	0	10	19	10	54	55
1973	407	43	96	70	17	2	0	5	25	53	50	46
1972	201	15	33	36	15	1	0	2	10	18	38	33
1971	161	22	29	20	19	0	0	7	11	25	16	12
1970	90	9	17	7	8	0	0	2	6	9	14	18
1969	86	13	13	11	11	0	0	0	5	15	14	4
1968	147	16	26	33	16	0	0	4	21	9	10	12
1967	153	19	21	26	3	0	0	0	9	22	25	28
1966	57	6	7	12	0	0	0	1	5	5	7	14
1965	77	20	8	13	4	0	0	1	2	9	11	9
1964	64	11	17	10	8	0	0	0	2	1	10	5
1963	56	2	5	5	3	0	0	1	6	6	12	16
1962	8	0	0	0	0	0	0	0	0	0	0	8