	British Astronomical Association Supporting amateur astronomers since 1890		Home	Login
			Help

Observation Summary for Variable Star YY HER

Total observations:	2,174		Minimum magnitude:	15.100	Maximum magnitude:	11.100
First observation:	JD 2447291.322200	\	9 May 1988 19:43:58.080000 UT	Latest observation:	JD 2460957.287500	\	8 Oct 2025 18:54:00.000000 UT

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2025	55	0	0	0	2	12	7	11	14	8	1	0	0
2024	74	0	1	1	5	21	9	10	15	7	5	0	0
2023	84	0	0	0	3	19	17	15	13	10	5	2	0
2022	90	0	0	3	9	7	8	15	14	10	18	6	0
2021	104	0	0	5	14	33	15	12	10	8	6	1	0
2020	94	0	0	1	8	27	10	16	6	16	5	5	0
2019	50	0	0	0	0	3	6	10	12	10	8	1	0
2018	96	0	0	0	0	27	14	13	14	16	10	2	0
2017	44	0	1	1	3	16	4	4	8	4	3	0	0
2016	50	0	1	1	5	8	2	11	12	4	5	1	0
2015	76	0	0	1	5	9	15	12	19	9	5	1	0
2014	65	0	0	1	5	6	8	17	11	5	6	6	0
2013	61	0	0	0	6	11	5	13	11	9	3	3	0
2012	37	0	0	0	1	8	2	5	8	7	2	4	0
2011	44	0	0	0	1	5	6	10	7	6	5	4	0
2010	61	3	2	2	11	7	11	4	9	2	7	3	0
2009	118	2	1	5	8	29	17	17	10	10	7	10	2
2008	65	0	0	0	1	4	13	9	7	13	14	1	3
2007	35	0	0	0	1	4	6	5	9	4	4	2	0
2006	40	0	0	0	0	4	6	11	7	2	4	4	2
2004	44	0	0	0	3	8	8	7	6	5	5	2	0
2003	72	0	0	3	0	7	6	15	14	12	11	4	0
2002	30	0	0	0	0	2	4	6	6	5	4	3	0
2001	45	0	0	0	8	8	8	8	6	4	0	3	0
2000	48	0	0	3	4	8	4	8	9	2	5	5	0
1999	60	0	0	1	3	6	13	13	8	5	7	3	1
1998	66	0	1	2	6	7	4	10	19	7	7	3	0
1997	106	0	0	7	8	17	7	22	13	14	14	4	0
1996	108	0	1	0	6	11	14	26	19	14	9	7	1
1995	62	0	0	1	3	9	8	11	13	5	10	2	0
1994	53	0	1	2	3	4	7	11	10	4	8	3	0
1993	74	0	0	1	1	7	15	19	11	8	9	3	0
1992	31	0	0	0	3	4	3	6	5	3	4	3	0
1991	15	0	0	0	0	0	0	3	6	2	3	1	0
1989	1	0	0	0	0	0	0	0	0	0	0	1	0
1988	16	0	0	0	0	3	2	5	3	3	0	0	0