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M5.5 solar flare on 1989-05-01

ClassM5.5NOAA report
Peak01:101989-05-01 UTC
Duration7 min
Peak flux5.5e-05W/m²
ComparisonValue
Rank in year116 / 2608
Other M/X flares that day0
M/X flares that month47
Solar cycleCycle 22
Position on diskN28E60
Active regionAR 5470 (31 flares)

Compared with the strongest flares of 1989

All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.

← X3.5 1989-04-09X2.3 1989-05-03 →

About this page

A M5.5 flare that began 1989-05-01 01:08 UTC; No. 116 of 2,608 C-class-or-larger flares in 1989.