Home › Flare history › 1980

M8.3 solar flare on 1980-09-08

ClassM8.3NOAA report

Peak05:271980-09-08 UTC

Duration80 min

Peak flux8.3e-05W/m²

Comparison	Value
Rank in year	27 / 2460
Other M/X flares that day	2
M/X flares that month	13
Solar cycle	Cycle 21
Position on disk	S09W70
Active region	AR 2645 (25 flares)

Compared with the strongest flares of 1980

X9.0 11-06X9.0

X4.4 11-05X4.4

X3.9 10-25X3.9

X3.3 10-14X3.3

X3.3 11-08X3.3

X3.0 05-01X3.0

X2.7 11-07X2.7

X2.6 06-21X2.6

X2.5 07-01X2.5

X2.5 11-12X2.5

X2.2 06-04X2.2

X1.9 11-15X1.9

Other M/X flares that day

Date	Begin	Peak	Min	Class	Location	Region
	05:03	05:10	27	M3.4	N15E84	2665
	19:10	19:13	20	M1.2	N12E77	2665

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.

← M6.4 1980-09-04 M5.9 1980-10-07 →

About this page

A M8.3 flare that began 1980-09-08 05:23 UTC; No. 27 of 2,460 C-class-or-larger flares in 1980.