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M7.9 solar flare on 1990-08-10

ClassM7.9NOAA report
Peak18:141990-08-10 UTC
Duration63 min
Peak flux7.9e-05W/m²
ComparisonValue
Rank in year20 / 2551
Other M/X flares that day0
M/X flares that month26
Solar cycleCycle 22
Position on diskN20E72
Active regionAR 6203 (5 flares)

Compared with the strongest flares of 1990

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.

← M7.6 1990-07-04M5.2 1990-08-26 →

About this page

A M7.9 flare that began 1990-08-10 18:09 UTC; No. 20 of 2,551 C-class-or-larger flares in 1990.