	British Astronomical Association Supporting amateur astronomers since 1890		Home	Login
			Help

Observation Summary for Variable Star AH HER

Total observations:	13,986		Minimum magnitude:	15.100	Maximum magnitude:	10.100
First observation:	JD 2441089.520800	\	18 May 1971 00:29:57.120000 UT	Latest observation:	JD 2460615.272000	\	31 Oct 2024 18:31:40.800000 UT

Observation Method	Number of Observations
Visual	12,833
CCD	1,143
DSLR	10

Back to Basic Summary

Summary by Year and Month

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2024	139	6	4	7	12	18	19	19	22	17	15	0	0
2023	221	6	5	8	14	41	36	28	40	26	2	10	5
2022	217	7	6	16	24	21	30	31	33	23	20	4	2
2021	163	4	5	6	18	21	18	25	23	24	15	4	0
2020	605	5	6	10	127	260	21	108	16	33	11	5	3
2019	187	8	5	5	7	34	17	21	31	35	19	1	4
2018	202	9	8	9	9	30	25	22	32	19	31	3	5
2017	154	9	5	10	11	24	16	15	23	22	7	7	5
2016	394	2	5	12	75	18	72	57	94	31	21	5	2
2015	218	8	8	4	16	25	26	37	26	38	23	4	3
2014	209	6	11	9	15	19	21	40	35	18	17	14	4
2013	625	7	5	4	22	32	406	37	34	36	24	13	5
2012	216	9	5	9	8	32	17	23	43	31	16	13	10
2011	193	3	5	9	18	28	22	24	24	25	24	6	5
2010	315	12	9	15	77	34	34	21	43	30	29	7	4
2009	369	13	9	15	35	62	47	41	47	40	23	24	13
2008	268	8	11	11	16	24	40	43	24	42	34	9	6
2007	265	5	6	10	21	37	19	26	54	42	32	9	4
2006	228	1	4	4	13	19	29	60	31	28	21	14	4
2005	148	5	6	1	12	19	16	10	36	26	6	7	4
2004	160	3	4	4	10	25	22	12	26	32	18	3	1
2003	224	4	5	12	17	23	12	30	43	40	22	15	1
2002	263	5	9	7	32	34	19	24	37	54	24	16	2
2001	264	5	5	4	30	42	30	32	46	24	25	16	5
2000	343	7	12	19	24	35	23	41	76	49	40	13	4
1999	457	19	13	24	27	46	59	70	51	61	58	17	12
1998	309	5	9	21	26	39	14	32	70	45	31	12	5
1997	265	3	6	21	21	50	14	28	31	37	40	9	5
1996	308	1	10	3	18	29	56	55	49	47	24	11	5
1995	362	10	11	20	25	46	44	55	72	37	29	11	2
1994	308	7	6	15	23	35	53	51	45	32	28	6	7
1993	295	2	8	21	11	32	41	45	46	39	32	14	4
1992	252	2	3	6	14	60	34	37	37	31	21	5	2
1991	233	6	2	6	13	27	37	26	50	30	24	12	0
1990	263	3	4	7	24	42	29	56	34	28	27	8	1
1989	371	5	2	11	19	73	44	51	70	41	37	18	0
1988	577	18	14	8	35	79	60	71	80	103	62	39	8
1987	529	12	6	18	38	56	43	73	94	78	69	34	8
1986	369	11	9	17	30	54	45	40	26	54	47	27	9
1985	237	4	7	11	19	32	25	35	34	25	27	14	4
1984	258	4	5	5	44	26	37	47	24	35	17	12	2
1983	201	1	3	7	10	27	24	32	39	25	28	5	0
1982	224	2	3	14	20	35	10	25	34	48	22	10	1
1981	265	12	26	8	17	25	23	29	40	39	36	10	0
1980	213	1	0	5	17	54	9	13	21	39	40	10	4
1979	125	1	5	9	11	16	8	9	17	32	11	6	0
1978	105	2	2	7	9	15	13	6	23	13	9	4	2
1977	117	0	0	0	5	14	8	16	27	36	9	2	0
1976	59	1	0	3	6	6	9	7	18	4	3	2	0
1975	141	5	1	3	2	26	25	19	21	13	23	3	0
1974	217	5	11	9	18	37	30	35	27	28	10	7	0
1973	241	1	5	12	7	26	37	29	40	35	20	24	5
1971	95	0	0	0	0	4	10	21	15	20	17	7	1