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M6.5 solar flare on 1990-12-11
ClassM6.5NOAA report
Peak20:441990-12-11 UTC
Duration24 min
Peak flux6.5e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 28 / 2551 |
| Other M/X flares that day | 4 |
| M/X flares that month | 53 |
| Solar cycle | Cycle 22 |
| Position on disk | S11W80 |
| Active region | AR 6402 (5 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 |
|---|---|---|---|---|---|---|
| 05:02 | 05:04 | 14 | M1.1 | S25W88 | 6387 | |
| 11:11 | 11:32 | 77 | M1.3 | N11W61 | 6398 | |
| 18:15 | 18:21 | 16 | M1.3 | N12W66 | 6398 | |
| 22:57 | 23:06 | 21 | M1.1 | N13W72 | 6398 |
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.
← M5.8 1990-12-10M5.1 1990-12-12 →
About this page
A M6.5 flare that began 1990-12-11 20:41 UTC; No. 28 of 2,551 C-class-or-larger flares in 1990.