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Observation Summary for Variable Star MARKARIAN 421

Total observations:6,905Minimum magnitude: 14.900Maximum magnitude: 8.400
First observation:JD 2443172.740000\29 Jan 1977 05:45:36.000000 UTLatest observation:JD 2460812.441700\16 May 2025 22:36:02.880000 UT
Observation MethodNumber of Observations
Visual6,754
CCD139
Photographic1
DSLR11

Summary by Year and Month

Summary by Observer