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Observation Summary for Variable Star MARKARIAN 421

Total observations:6,777Minimum magnitude: 14.900Maximum magnitude: 8.400
First observation:JD 2443172.740000\29 Jan 1977 05:45:36.000000 UTLatest observation:JD 2460449.427800\18 May 2024 22:16:01.920000 UT
Observation MethodNumber of Observations
Visual6,628
CCD138
Photographic1
DSLR10

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Summary by Year and Month

YearTotalJanFebMarAprMayJunJulAugSepOctNovDec
2024641311161770000000
2023146161513202646200134
2022157121630421913700657
202110971318382210000010
202018411213147577100234
201914218272720237400556
201814783215213414010769
2017126773526237203475
20161468313623257500155
2015204152626533521244648
2014185192437333096227412
2013207814175843239333719
2012198221758233574465710
201113551321383011101546
201016331326393022411996
2009171178293734186213610
2008212224632282526843837
2007217222435594312331546
20061911521405618131003366
2005130182011262612110078
2004159192325322718200346
20032503238705028101001155
2002227143428753613821646
20012221726364753158002414
200028431515155421810017135
199929930354140503825518620
19981801928244234105003105
199724519304434561314827810
19961591287272922140061213
1995196312450292585016107
19941661633253122142005513
19931891918362333279214710
1992141512202837129006210
199163117101475000126
199011016202622153000035
1989134162428132211910127
19881771728232620252230355
1987108961423207821765
1986515412895300113
19853951011812000011
1984407451433010111
198343299955101011
19825132131992000021
19819000431000010
19771100000000000