	British Astronomical Association Supporting amateur astronomers since 1890		Home	Login
			Help

Observation Summary for Variable Star V503 CYG

Total observations:	5,251		Minimum magnitude:	18.710	Maximum magnitude:	13.000
First observation:	JD 2448268.275000	\	11 Jan 1991 18:36:00.000000 UT	Latest observation:	JD 2460980.413200	\	31 Oct 2025 21:55:00.480000 UT

Observation Method	Number of Observations
Visual	1,474
CCD	3,777

Year	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2025	148	5	0	1	13	16	16	29	26	24	18	0	0
2024	179	1	3	4	11	15	29	28	30	23	18	10	7
2023	124	1	0	1	4	4	15	20	22	26	13	14	4
2022	95	1	0	0	2	7	15	15	25	10	10	7	3
2021	89	1	1	0	0	2	9	13	19	23	11	6	4
2020	55	0	0	0	0	5	7	8	4	11	12	5	3
2019	32	1	0	0	0	0	1	5	7	7	6	1	4
2018	38	0	0	0	0	0	9	8	3	8	6	2	2
2017	247	0	0	0	0	2	2	226	7	2	5	3	0
2016	32	1	0	0	0	2	0	6	7	5	5	3	3
2015	27	1	0	0	0	0	7	4	5	4	3	1	2
2014	270	1	0	0	0	1	4	8	5	2	241	5	3
2013	20	0	0	0	0	0	2	3	4	4	3	3	1
2012	2,481	2	0	0	0	1	814	555	3	639	460	4	3
2011	440	0	0	0	0	0	2	416	5	4	4	6	3
2010	19	3	0	0	0	0	4	3	3	0	4	1	1
2009	43	4	0	0	2	5	7	9	6	3	2	3	2
2008	40	2	0	0	0	1	10	5	4	4	7	2	5
2007	37	5	0	0	0	2	4	3	6	3	3	6	5
2006	38	2	0	0	0	0	5	9	5	2	5	8	2
2005	6	6	0	0	0	0	0	0	0	0	0	0	0
2004	45	1	0	0	0	6	6	6	6	4	6	6	4
2003	86	5	0	0	1	4	5	13	14	12	15	8	9
2002	69	5	1	0	3	3	4	11	16	12	5	5	4
2001	69	4	0	0	5	13	4	14	8	7	0	7	7
2000	162	3	3	1	4	10	8	18	36	22	24	20	13
1999	145	3	2	1	1	12	22	25	19	17	19	14	10
1998	86	2	0	2	4	5	5	7	19	8	17	12	5
1997	86	2	0	3	6	15	7	10	12	11	12	4	4
1996	41	0	0	0	0	0	0	0	6	10	8	10	7
1991	2	1	0	0	0	1	0	0	0	0	0	0	0