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Observation Summary for Variable Star MARKARIAN 509

Total observations:	303		Minimum magnitude:	14.800	Maximum magnitude:	13.700
First observation:	JD 2444815.478000	\	29 Jul 1981 23:28:19.200000 UT	Latest observation:	JD 2460259.264000	\	10 Nov 2023 18:20:09.600000 UT

Observation Method	Number of Observations
Visual	303

Year	Total	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2023	2	0	0	0	1	0	0	1	0
2021	1	0	0	1	0	0	0	0	0
2020	2	0	0	1	1	0	0	0	0
2019	1	0	0	1	0	0	0	0	0
2018	5	0	1	1	1	1	1	0	0
2016	2	0	0	1	1	0	0	0	0
2015	3	0	0	1	1	1	0	0	0
2014	3	0	0	1	1	1	0	0	0
2013	5	0	0	1	1	1	1	1	0
2012	4	0	0	1	1	1	0	0	1
2011	5	0	0	1	1	1	1	1	0
2010	8	0	1	0	3	2	1	0	1
2009	11	1	1	3	2	1	2	0	1
2008	11	0	1	1	3	2	2	2	0
2007	14	0	0	1	3	5	3	1	1
2006	7	0	0	3	1	1	2	0	0
2005	13	0	0	1	5	5	1	1	0
2004	9	0	0	0	1	3	2	3	0
2003	15	0	0	1	8	3	3	0	0
2002	20	0	0	1	4	7	5	2	1
2001	23	0	0	2	6	4	6	2	3
2000	21	0	0	1	9	6	3	2	0
1999	39	0	0	4	6	8	13	6	2
1998	6	0	0	1	2	1	1	1	0
1997	12	0	0	0	6	4	2	0	0
1996	12	0	0	3	1	3	1	2	2
1995	13	0	1	3	2	4	2	1	0
1994	11	0	1	2	3	0	2	2	1
1993	17	0	0	1	4	5	5	1	1
1992	5	0	0	3	2	0	0	0	0
1984	1	0	0	0	1	0	0	0	0
1981	2	0	0	1	1	0	0	0	0