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M8.9 solar flare on 1990-12-12
ClassM8.9NOAA report
Peak14:131990-12-12 UTC
Duration12 min
Peak flux8.9e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 17 / 2551 |
| Other M/X flares that day | 6 |
| M/X flares that month | 53 |
| Solar cycle | Cycle 22 |
| Position on disk | N10W72 |
| Active region | AR 6398 (28 flares) |
Compared with the strongest flares of 1990
X9.3
X5.5
X3.6
X3.4
X3.0
X2.4
X2.2
X1.9
X1.8
X1.7
X1.5
X1.4
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 03:24 | 03:26 | 68 | M1.7 | N23W68 | 6399 | |
| 03:36 | 03:44 | 62 | M4.0 | – | – | |
| 06:25 | 07:03 | 58 | M1.6 | N20W73 | 6399 | |
| 07:55 | 08:03 | 64 | M5.1 | N20W73 | 6399 | |
| 10:58 | 11:02 | 63 | M1.6 | N19W74 | 6399 | |
| 19:21 | 19:39 | 53 | M1.6 | – | – |
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.
← M5.1 1990-12-12M5.3 1990-12-22 →
About this page
A M8.9 flare that began 1990-12-12 14:13 UTC; No. 17 of 2,551 C-class-or-larger flares in 1990.