	British Astronomical Association Supporting amateur astronomers since 1890		Home	Login
			Help

Observation Summary for Variable Star AB DRA

Total observations:	16,433		Minimum magnitude:	16.800	Maximum magnitude:	10.100
First observation:	JD 2440402.290000	\	29 Jun 1969 18:57:36.000000 UT	Latest observation:	JD 2460441.565300	\	11 May 2024 01:34:01.920000 UT

Observation Method	Number of Observations
Visual	15,416
CCD	952
CMOS	65

Back to Basic Summary

Summary by Year and Month

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2024	39	15	5	10	8	1	0	0	0	0	0	0	0
2023	274	23	11	5	19	48	46	26	28	24	14	18	12
2022	523	31	28	32	37	32	182	35	35	27	39	22	23
2021	265	7	16	23	45	33	21	19	26	25	24	15	11
2020	871	23	12	24	264	411	15	23	12	32	20	19	16
2019	313	21	32	19	26	28	17	29	37	41	30	12	21
2018	380	23	30	10	27	41	31	36	38	41	51	30	22
2017	268	28	10	28	27	28	20	16	27	20	22	23	19
2016	439	16	22	26	45	59	55	48	64	27	27	29	21
2015	280	18	20	13	37	21	23	22	29	32	31	21	13
2014	258	23	23	26	24	21	11	26	28	17	16	18	25
2013	249	12	13	8	36	27	16	26	23	17	20	22	29
2012	242	34	18	27	15	27	5	14	28	19	10	20	25
2011	215	16	15	16	24	23	19	18	13	14	21	16	20
2010	326	36	18	38	48	30	22	7	31	20	37	22	17
2009	390	36	18	32	48	46	32	36	30	33	20	28	31
2008	383	27	33	25	22	31	31	38	26	42	55	25	28
2007	294	34	18	22	34	27	10	14	29	22	24	27	33
2006	244	17	14	19	25	22	18	27	16	17	23	29	17
2005	216	27	15	12	24	22	9	6	24	17	13	26	21
2004	236	21	18	24	21	23	15	12	18	30	20	16	18
2003	424	37	33	53	44	26	13	21	46	51	42	25	33
2002	283	24	22	21	49	27	8	12	29	32	19	24	16
2001	336	30	26	30	40	38	13	16	33	18	23	31	38
2000	531	46	47	41	43	31	19	35	69	53	48	55	44
1999	571	37	33	26	38	35	44	57	48	68	73	42	70
1998	376	35	25	22	27	24	9	15	53	40	47	46	33
1997	319	19	21	32	25	49	15	21	23	32	48	20	14
1996	283	7	27	4	27	27	35	37	27	19	17	30	26
1995	415	39	24	57	37	35	22	37	59	28	30	32	15
1994	358	30	23	27	28	21	32	39	33	31	38	18	38
1993	306	22	11	30	11	24	34	29	36	29	33	21	26
1992	230	23	14	15	13	30	24	19	15	11	19	20	27
1991	264	33	13	10	17	15	20	15	38	29	19	26	29
1990	302	27	25	32	33	22	14	33	22	25	32	14	23
1989	341	29	25	24	15	31	26	29	49	33	32	29	19
1988	407	34	38	24	38	39	24	21	32	43	42	44	28
1987	420	36	23	42	38	36	19	28	44	40	45	45	24
1986	411	33	25	33	25	26	31	32	20	44	52	40	50
1985	290	34	28	19	27	21	14	18	20	23	31	31	24
1984	331	34	19	15	46	18	24	28	23	33	33	22	36
1983	284	14	22	30	29	19	19	14	23	24	36	25	29
1982	114	0	6	10	5	1	2	2	11	23	17	18	19
1981	71	9	8	2	6	6	1	0	8	15	9	6	1
1980	161	5	7	4	19	25	1	1	8	26	31	18	16
1979	152	17	13	15	7	9	3	5	16	34	18	12	3
1978	90	9	7	9	7	7	4	1	5	10	8	10	13
1977	78	1	3	7	10	8	4	5	11	20	6	2	1
1976	179	14	3	17	22	11	11	20	35	12	7	17	10
1975	214	25	8	15	7	17	27	16	23	25	27	12	12
1974	299	24	25	20	23	28	22	24	30	37	15	35	16
1973	408	7	11	38	21	34	28	21	33	47	58	70	40
1972	126	4	7	8	8	8	5	7	28	10	16	15	10
1971	152	4	9	5	8	8	5	14	14	33	21	26	5
1970	130	2	13	10	8	8	5	9	17	6	20	20	12
1969	72	0	0	0	0	0	2	20	11	2	16	15	6