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X1.2 solar flare on 2024-09-12

ClassX1.2GOES-16 science data
Peak09:432024-09-12 UTC
Duration19 min
Peak flux1.2e-04W/m²
ComparisonValue
Rank among X flares (since Jun 2017)75 / 108
Rank in year38 / 3708
Other M/X flares that day5
M/X flares that month57
Solar cycleCycle 25

Compared with the strongest flares of 2024

Other M/X flares that day

DateBeginPeakMinClassLocationRegion
03:5504:0415M1.0––
06:0406:1824M2.7––
13:1313:2118M1.2––
14:3114:4315M6.8––
14:5615:0623M1.6––
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.

← M5.0 2024-09-11M6.8 2024-09-12 →

About this page

A X1.2 flare that began 2024-09-12 09:31 UTC; No. 38 of 3,708 C-class-or-larger flares in 2024.