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Observation Summary for Variable Star CH UMA

Total observations:	13,057		Minimum magnitude:	15.889	Maximum magnitude:	10.400
First observation:	JD 2441619.440000	\	28 Oct 1972 22:33:36.000000 UT	Latest observation:	JD 2460610.307000	\	26 Oct 2024 19:22:04.800000 UT

Observation Method	Number of Observations
Visual	10,056
Photographic	1
CCD	3,000

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Summary by Year and Month

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2024	47	10	4	7	5	13	5	0	1	0	2	0	0
2023	87	10	11	10	9	21	13	3	1	1	1	1	6
2022	2,066	258	13	925	724	117	5	9	5	2	1	4	3
2021	754	3	11	13	29	30	9	7	1	6	7	210	428
2020	110	10	8	16	20	30	7	6	0	9	0	3	1
2019	104	11	17	16	14	17	8	2	11	2	1	1	4
2018	408	11	12	6	11	317	15	5	11	3	4	4	9
2017	97	14	5	17	13	13	6	2	9	2	2	8	6
2016	117	5	14	13	15	14	2	8	9	8	6	10	13
2015	101	8	13	10	19	24	12	6	3	1	0	1	4
2014	109	11	11	17	13	15	6	7	8	2	3	7	9
2013	112	6	11	9	26	18	6	6	5	4	6	6	9
2012	159	26	15	27	14	22	2	8	17	5	1	6	16
2011	107	5	6	11	21	18	15	15	6	0	3	3	4
2010	158	18	13	25	33	17	13	3	13	2	7	8	6
2009	188	18	10	21	22	23	20	23	14	8	7	11	11
2008	212	19	27	10	9	17	21	20	13	23	23	12	18
2007	156	20	11	8	19	11	7	7	16	12	13	13	19
2006	127	12	13	11	9	10	5	12	12	7	13	15	8
2005	84	19	11	4	12	6	2	0	10	2	0	10	8
2004	137	15	16	9	15	13	8	10	15	10	7	11	8
2003	298	27	33	46	34	15	6	18	30	27	18	19	25
2002	164	14	17	14	38	21	7	9	13	12	5	7	7
2001	179	16	20	18	28	30	13	12	7	3	7	12	13
2000	328	34	56	47	51	21	11	9	15	16	15	21	32
1999	292	27	28	42	27	23	19	16	7	12	20	26	45
1998	221	30	24	16	24	19	5	12	31	19	13	14	14
1997	215	12	16	26	24	32	7	13	12	25	28	12	8
1996	190	6	28	4	21	27	21	18	14	8	6	22	15
1995	166	17	14	30	23	20	11	14	13	0	5	14	5
1994	197	24	24	22	26	20	13	14	10	6	10	6	22
1993	208	20	14	34	17	20	12	21	16	6	12	12	24
1992	164	18	23	22	20	15	3	8	5	5	10	16	19
1991	203	35	18	16	27	15	13	11	20	8	7	14	19
1990	177	16	16	27	28	11	10	10	9	7	13	10	20
1989	281	38	40	46	24	33	10	11	20	15	12	23	9
1988	409	41	59	35	55	34	14	13	24	36	29	37	32
1987	443	42	33	61	51	44	17	26	38	32	37	35	27
1986	437	41	38	50	41	37	29	22	18	32	38	39	52
1985	376	39	50	55	35	34	14	22	24	20	26	31	26
1984	333	24	19	19	62	23	25	30	20	25	27	19	40
1983	315	24	30	46	28	24	23	15	21	19	30	23	32
1982	354	26	26	63	53	45	11	16	20	23	15	26	30
1981	299	33	42	24	42	33	19	13	18	20	18	22	15
1980	164	11	7	7	19	22	0	4	9	20	27	22	16
1979	109	10	12	6	4	7	2	4	10	25	12	10	7
1978	123	15	5	15	20	11	10	4	12	8	5	13	5
1977	103	1	5	10	14	15	4	4	14	21	6	3	6
1976	146	15	4	16	16	8	9	18	29	6	2	13	10
1975	152	21	12	17	8	17	14	9	9	7	13	10	15
1974	235	25	16	17	24	26	23	25	15	23	8	18	15
1973	320	12	18	48	30	30	33	21	25	15	29	32	27
1972	16	0	0	0	0	0	0	0	0	0	1	0	15