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Observation Summary for Variable Star U DEL

Total observations:	9,261		Minimum magnitude:	8.000	Maximum magnitude:	6.000
First observation:	JD 2439732.425000	\	29 Aug 1967 22:12:00.000000 UT	Latest observation:	JD 2460414.621000	\	14 Apr 2024 02:54:14.400000 UT

Observation Method	Number of Observations
Visual	9,252
Photographic	5
CCD	4

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Summary by Year and Month

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2024	13	6	2	3	2	0	0	0	0	0	0	0	0
2023	93	4	2	2	5	7	11	9	9	10	14	13	7
2022	94	12	3	3	3	6	8	7	12	12	12	8	8
2021	100	8	4	4	3	5	7	12	8	19	13	14	3
2020	131	2	3	5	7	11	11	9	9	18	22	18	16
2019	106	5	6	4	5	5	8	11	12	19	12	10	9
2018	149	5	8	5	5	9	12	16	19	20	28	11	11
2017	103	6	5	4	1	6	9	10	13	12	12	14	11
2016	121	4	6	5	7	7	9	11	12	12	18	21	9
2015	122	8	6	4	8	6	7	10	11	18	19	15	10
2014	144	6	6	5	7	6	7	19	16	19	16	14	23
2013	125	5	3	4	6	5	6	13	12	19	19	18	15
2012	136	10	5	5	2	8	5	13	15	22	16	19	16
2011	130	7	5	6	6	7	12	10	14	14	14	20	15
2010	149	11	2	5	8	6	8	17	21	17	26	13	15
2009	177	14	2	4	7	9	12	18	26	31	18	23	13
2008	166	5	6	7	7	7	22	18	15	24	28	17	10
2007	172	13	1	6	5	6	6	15	12	37	32	20	19
2006	202	5	5	4	5	7	14	32	27	34	27	26	16
2005	131	9	1	2	5	5	10	7	24	19	13	21	15
2004	145	3	2	2	4	5	11	10	18	23	26	22	19
2003	160	11	1	6	4	4	7	16	25	27	27	16	16
2002	152	8	2	3	4	3	11	14	19	21	31	24	12
2001	177	8	2	3	6	8	11	11	19	21	28	26	34
2000	158	12	2	2	7	5	7	13	24	20	29	22	15
1999	204	12	2	3	7	4	12	21	25	35	31	30	22
1998	260	14	4	6	5	8	12	19	43	33	40	40	36
1997	145	5	2	11	8	11	7	12	18	21	28	15	7
1996	64	1	4	1	4	3	9	8	10	7	5	9	3
1995	240	10	7	19	15	13	16	24	39	36	32	17	12
1994	256	16	7	11	7	15	21	20	31	42	50	24	12
1993	262	7	7	8	3	13	19	27	35	32	43	38	30
1992	213	5	5	7	6	12	8	24	41	27	33	30	15
1991	176	12	2	4	5	2	8	13	38	25	19	28	20
1990	144	6	1	5	4	7	11	18	16	28	20	13	15
1989	216	10	2	6	7	13	21	25	34	29	31	29	9
1988	288	9	2	3	4	11	19	25	47	57	49	43	19
1987	195	8	1	5	6	8	17	25	29	26	31	22	17
1986	227	11	3	3	7	9	13	24	23	43	37	29	25
1985	192	9	3	6	6	9	14	25	27	25	28	21	19
1984	187	6	3	2	10	10	16	29	25	22	27	16	21
1983	169	6	4	4	6	9	13	18	22	22	26	18	21
1982	234	12	3	5	6	11	11	26	37	37	34	26	26
1981	178	5	2	3	4	6	8	17	34	26	33	23	17
1980	132	7	0	1	4	4	4	18	22	22	13	22	15
1979	140	6	0	1	3	6	7	15	18	27	23	18	16
1978	107	6	1	2	0	5	7	10	15	20	17	16	8
1977	146	13	0	2	4	5	9	16	21	24	27	15	10
1976	252	3	1	2	8	6	13	31	54	25	35	42	32
1975	224	16	0	0	2	10	24	20	43	36	33	24	16
1974	313	5	4	0	4	13	23	42	49	45	49	53	26
1973	318	3	1	10	10	9	28	31	44	58	45	46	33
1972	145	6	0	2	6	3	8	18	32	21	20	16	13
1971	220	10	2	1	11	12	3	50	38	2	42	37	12
1970	13	0	0	1	1	2	1	2	4	1	0	0	1
1969	21	2	0	3	4	0	1	2	3	1	1	3	1
1968	6	1	0	1	1	0	2	0	0	1	0	0	0
1967	18	0	0	0	0	0	0	0	1	8	3	3	3