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M7.9 solar flare on 2012-03-13

ClassM7.9NOAA report
Peak17:412012-03-13 UTC
Duration73 min
Peak flux7.9e-05W/m²
ComparisonValue
Rank in year11 / 1388
Other M/X flares that day0
M/X flares that month22
Solar cycleCycle 24
Position on diskN19W59
Active regionAR 11429 (28 flares)

Compared with the strongest flares of 2012

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.

← M8.4 2012-03-10M5.7 2012-05-10 →

About this page

A M7.9 flare that began 2012-03-13 17:12 UTC; No. 11 of 1,388 C-class-or-larger flares in 2012.