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M6.1 solar flare on 2005-09-12

ClassM6.1NOAA report

Peak09:032005-09-12 UTC

Duration43 min

Peak flux6.1e-05W/m²

Comparison	Value
Rank in year	29 / 699
Other M/X flares that day	3
M/X flares that month	36
Solar cycle	Cycle 23
Active region	AR 10808 (77 flares)

Compared with the strongest flares of 2005

X17.0 09-07X17.0

X7.1 01-20X7.1

X6.2 09-09X6.2

X5.4 09-08X5.4

X3.8 01-17X3.8

X3.6 09-09X3.6

X2.6 01-15X2.6

X2.1 09-10X2.1

X1.7 01-01X1.7

X1.7 09-13X1.7

X1.5 09-13X1.5

X1.3 01-19X1.3

Other M/X flares that day

Begin	Peak	Min	Class	Location	Region
04:49	05:05	38	M1.5	–	–
06:56	07:01	9	M1.3	–	10808
20:05	20:09	6	M1.5	–	10808

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.

← X2.1 2005-09-10 X1.5 2005-09-13 →

About this page

A M6.1 flare that began 2005-09-12 08:37 UTC; No. 29 of 699 C-class-or-larger flares in 2005.